full reborn

2021-11-24 13:52:27 +06:00 · 2021-11-24 13:52:27 +06:00 · 6a6a197041
parent 0ac6b0a4df
commit 6a6a197041
246 changed files with 4327 additions and 6952 deletions
--- a/.github/workflows/autopublish.yml
+++ b/.github/workflows/autopublish.yml
@ -8,6 +8,15 @@ jobs:
      - uses: actions/setup-java@v1
        with:
          java-version: 1.8
+      - name: Fix android 31.0.0 dx
+        continue-on-error: true
+        run: cd /usr/local/lib/android/sdk/build-tools/31.0.0/ && mv d8 dx && cd lib  && mv d8.jar dx.jar
+      - name: Rewrite version
+        run: |
+          branch="`echo "${{ github.ref }}" | grep -o "[^/]*$"`"
+          cat gradle.properties | sed -e "s/^version=\([0-9\.]*\)/version=\1-branch_$branch-build${{ github.run_number }}/" > gradle.properties.tmp
+          rm gradle.properties
+          mv gradle.properties.tmp gradle.properties
      - name: prebuild
        run: ./gradlew clean build
      - name: Publish package
@ -15,4 +24,3 @@ jobs:
        env:
          GITHUBPACKAGES_USER: ${{ secrets.GITHUBPACKAGES_USER }}
          GITHUBPACKAGES_PASSWORD: ${{ secrets.GITHUB_TOKEN }}
-          additional_version: "-build${{ github.run_number }}"
--- a/201
+++ b/201
@ -1,201 +0,0 @@
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--- a/README.md
+++ b/README.md
@ -0,0 +1,14 @@
+## Структура проекта
+
+* Features - набор **законченных** фич проекта. Считается, что любая фича, находящаяся в мастере может быть добавлена в
+  клиент и использована в нем. Исключением является `common` - это набор вещей, используемых везде. В подпунктах представлены
+  части, на которые *обычно* разделяется фича
+  * Common - общая для фичи часть. Тут, как правило, хранятся конвенции путей для сетевых соединений, общие типы и пр.
+  * Server - часть, включаемая в сервер для подключения фичи. Обычно содержит работу с бд, определение модулей сервера и пр.
+  * Client - часть с клиентским кодом. В большинстве своём включает работу с сервером, MVVM часть (View при этом должны
+    находиться в платформенной части, если их нельзя вынести в сommon часть клиента)
+* Client - итоговый клиент. На момент написания этой доки (`Пн окт 25 12:56:41 +06 2021`) предполагается два варианта:
+  * Мультиплатформенный проект со сборкой каждого таргета. Скорее всего, не будет использован в силу сложности настройки 
+    части клиентов (например, андроид)
+  * Мультимодульный проект
+* Server - пока что JVM-only модуль, включающий все необходимые для сервера фичи
--- a/build.gradle
+++ b/build.gradle
@ -1,6 +1,5 @@
 buildscript {
    repositories {
-        jcenter()
        google()
        mavenCentral()
        mavenLocal()
@ -8,11 +7,10 @@ buildscript {
    }

    dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.2'
+        classpath 'com.android.tools.build:gradle:4.2.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
        classpath "com.getkeepsafe.dexcount:dexcount-gradle-plugin:$dexcount_version"
-        classpath "com.github.breadmoirai:github-release:$github_release_plugin_version"
        classpath "org.jetbrains.dokka:dokka-gradle-plugin:$dokka_version"
    }
 }
@ -20,12 +18,10 @@ buildscript {
 allprojects {
    repositories {
        mavenLocal()
-        jcenter()
        mavenCentral()
        google()
-        maven { url "https://kotlin.bintray.com/kotlinx" }
    }
 }

 apply from: "./extensions.gradle"
-apply from: "./github_release.gradle"
+// apply from: "./github_release.gradle"
--- a/business_cases/post_creating/client/build.gradle
+++ b/business_cases/post_creating/client/build.gradle
@ -1,20 +0,0 @@
-plugins {
-    id "org.jetbrains.kotlin.multiplatform"
-    id "org.jetbrains.kotlin.plugin.serialization"
-    id "com.android.library"
-}
-
-apply from: "$mppProjectWithSerializationPresetPath"
-
-kotlin {
-    sourceSets {
-        commonMain {
-            dependencies {
-                implementation kotlin('stdlib')
-
-                api project(":postssystem.business_cases.post_creating.common")
-                api project(":postssystem.core.ktor.client")
-            }
-        }
-    }
-}
--- a/business_cases/post_creating/client/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/client/PostCreatingClientCase.kt
+++ b/business_cases/post_creating/client/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/client/PostCreatingClientCase.kt
@ -1,26 +0,0 @@
-package dev.inmo.postssystem.business_cases.post_creating.client
-
-import dev.inmo.micro_utils.ktor.client.*
-import dev.inmo.postssystem.business_cases.post_creating.server.*
-import dev.inmo.postssystem.core.content.Content
-import dev.inmo.postssystem.core.post.RegisteredPost
-import dev.inmo.postssystem.core.publishing.TriggerId
-import dev.inmo.micro_utils.ktor.common.buildStandardUrl
-import io.ktor.client.HttpClient
-import kotlinx.serialization.builtins.nullable
-
-class PostCreatingClientCase(
-    private val baseUrl: String,
-    private val unifiedRequester: UnifiedRequester,
-    private val rootRoute: String? = postCreatingRootRoute
-) : PostCreatingCase {
-    private val realBaseUrl = rootRoute ?.let { "$baseUrl/$rootRoute" } ?: baseUrl
-    override suspend fun createPost(
-        postContent: List<Content>,
-        triggerId: TriggerId?
-    ): RegisteredPost? = unifiedRequester.unipost(
-        buildStandardUrl(realBaseUrl, postCreatingCreatePostRoute),
-        BodyPair(PostCreatingCreatePostModel.serializer(), PostCreatingCreatePostModel(postContent, triggerId)),
-        RegisteredPost.serializer().nullable
-    )
-}
--- a/business_cases/post_creating/client/src/main/AndroidManifest.xml
+++ b/business_cases/post_creating/client/src/main/AndroidManifest.xml
@ -1 +0,0 @@
-<manifest package="dev.inmo.postssystem.business_cases.post_creating.client"/>
--- a/business_cases/post_creating/common/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/BusinessPostCreatingCase.kt
+++ b/business_cases/post_creating/common/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/BusinessPostCreatingCase.kt
@ -1,26 +0,0 @@
-package dev.inmo.postssystem.business_cases.post_creating.server
-
-import dev.inmo.micro_utils.repos.set
-import dev.inmo.postssystem.core.content.Content
-import dev.inmo.postssystem.core.content.api.ContentRepo
-import dev.inmo.postssystem.core.post.*
-import dev.inmo.postssystem.core.post.repo.PostsRepo
-import dev.inmo.postssystem.core.publishing.*
-import dev.inmo.postssystem.core.publishing.repos.WriteTriggersToPostsRepo
-
-class BusinessPostCreatingCase(
-    private val postsRepo: PostsRepo,
-    private val contentRepo: ContentRepo,
-    private val postsTriggersToPostsRepo: WriteTriggersToPostsRepo
-) : PostCreatingCase {
-    override suspend fun createPost(postContent: List<Content>, triggerId: TriggerId?): RegisteredPost? {
-        val content = contentRepo.create(postContent)
-        val post = postsRepo.createPost(SimplePost(content.map { it.id })) ?: return null
-
-        triggerId ?.let {
-            postsTriggersToPostsRepo.set(post.id, triggerId)
-        }
-
-        return post
-    }
-}
--- a/business_cases/post_creating/common/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/PostCreatingCase.kt
+++ b/business_cases/post_creating/common/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/PostCreatingCase.kt
@ -1,19 +0,0 @@
-package dev.inmo.postssystem.business_cases.post_creating.server
-
-import dev.inmo.postssystem.core.content.Content
-import dev.inmo.postssystem.core.post.RegisteredPost
-import dev.inmo.postssystem.core.publishing.TriggerId
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class PostCreatingCreatePostModel(
-    val postContent: List<Content>,
-    val triggerId: TriggerId?
-)
-
-interface PostCreatingCase {
-    suspend fun createPost(
-        postContent: List<Content>,
-        triggerId: TriggerId? = null
-    ): RegisteredPost?
-}
--- a/business_cases/post_creating/common/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/Routings.kt
+++ b/business_cases/post_creating/common/src/commonMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/Routings.kt
@ -1,5 +0,0 @@
-package dev.inmo.postssystem.business_cases.post_creating.server
-
-const val postCreatingRootRoute = "postCreating"
-
-const val postCreatingCreatePostRoute = "createPost"
--- a/business_cases/post_creating/common/src/main/AndroidManifest.xml
+++ b/business_cases/post_creating/common/src/main/AndroidManifest.xml
@ -1 +0,0 @@
-<manifest package="dev.inmo.postssystem.business_cases.post_creating.common"/>
--- a/business_cases/post_creating/server/build.gradle
+++ b/business_cases/post_creating/server/build.gradle
@ -1,24 +0,0 @@
-plugins {
-    id "org.jetbrains.kotlin.multiplatform"
-    id "org.jetbrains.kotlin.plugin.serialization"
-}
-
-apply from: "$mppJavaProjectPresetPath"
-
-kotlin {
-    sourceSets {
-        commonMain {
-            dependencies {
-                api project(":postssystem.business_cases.post_creating.common")
-                api project(":postssystem.core.ktor.server")
-            }
-        }
-        jvmTest {
-            dependencies {
-                implementation "org.xerial:sqlite-jdbc:$test_sqlite_version"
-                implementation "org.jetbrains.kotlin:kotlin-test"
-                implementation "org.jetbrains.kotlin:kotlin-test-junit"
-            }
-        }
-    }
-}
--- a/business_cases/post_creating/server/src/jvmMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/PostCreatingRoutingCase.kt
+++ b/business_cases/post_creating/server/src/jvmMain/kotlin/dev/inmo/postssystem/business_cases/post_creating/server/PostCreatingRoutingCase.kt
@ -1,33 +0,0 @@
-package dev.inmo.postssystem.business_cases.post_creating.server
-
-import dev.inmo.micro_utils.ktor.server.*
-import dev.inmo.postssystem.core.post.RegisteredPost
-import io.ktor.application.call
-import io.ktor.routing.*
-import kotlinx.serialization.builtins.nullable
-
-private inline fun Route.configurePostCreatingRoutes(
-    origin: PostCreatingCase,
-    unifiedRouter: UnifiedRouter
-) {
-    post(postCreatingCreatePostRoute) {
-        unifiedRouter.apply {
-            val model = uniload(PostCreatingCreatePostModel.serializer())
-
-            unianswer(
-                RegisteredPost.serializer().nullable,
-                origin.createPost(model.postContent, model.triggerId)
-            )
-        }
-    }
-}
-
-fun Route.configurePostCreatingRoutes(
-    origin: PostCreatingCase,
-    unifiedRouter: UnifiedRouter,
-    subroute: String? = postCreatingRootRoute
-) {
-    subroute ?.also {
-        route(subroute) { configurePostCreatingRoutes(origin, unifiedRouter) }
-    } ?: configurePostCreatingRoutes(origin, unifiedRouter)
-}
--- a/client/build.gradle
+++ b/client/build.gradle
@ -0,0 +1,41 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+}
+
+apply from: "$mppProjectWithSerializationPresetPath"
+
+kotlin {
+    js(IR) {
+        binaries.executable()
+    }
+    sourceSets {
+        commonMain {
+            dependencies {
+                api project(":postssystem.features.common.client")
+                api project(":postssystem.features.status.client")
+                api project(":postssystem.features.files.client")
+                api project(":postssystem.features.users.client")
+                api project(":postssystem.features.auth.client")
+                api project(":postssystem.features.roles.client")
+                api project(":postssystem.features.roles.manager.client")
+                api "dev.inmo:micro_utils.fsm.common:$microutils_version"
+                api "dev.inmo:micro_utils.fsm.repos.common:$microutils_version"
+                api "dev.inmo:micro_utils.crypto:$microutils_version"
+            }
+        }
+
+        jvmMain {
+            dependencies {
+                api "io.ktor:ktor-client-apache:$ktor_version"
+            }
+        }
+
+        jsMain {
+            dependencies {
+                implementation "org.jetbrains.kotlinx:kotlinx-html:$kotlinx_html_version"
+            }
+        }
+    }
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/DBDropper.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/DBDropper.kt
@ -0,0 +1,12 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.micro_utils.pagination.utils.getAllByWithNextPaging
+import dev.inmo.micro_utils.repos.KeyValueRepo
+
+class DBDropper(
+    private val repo: KeyValueRepo<String, Any>
+) {
+    suspend operator fun invoke() {
+        repo.unset(repo.getAllByWithNextPaging { keys(it) })
+    }
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/DI.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/DI.kt
@ -0,0 +1,105 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.postssystem.client.ui.fsm.*
+import dev.inmo.postssystem.features.auth.client.installClientAuthenticator
+import dev.inmo.postssystem.features.auth.common.*
+import dev.inmo.postssystem.features.files.client.ClientFilesStorage
+import dev.inmo.postssystem.features.files.common.storage.FilesStorage
+import dev.inmo.postssystem.features.roles.common.UserRole
+import dev.inmo.postssystem.features.roles.common.UsersRolesStorage
+import dev.inmo.postssystem.features.roles.client.ClientUsersRolesStorage
+import dev.inmo.postssystem.features.roles.manager.common.RolesManagerRoleSerializer
+import dev.inmo.postssystem.features.users.client.UsersStorageKtorClient
+import dev.inmo.postssystem.features.users.common.ReadUsersStorage
+import dev.inmo.postssystem.features.users.common.User
+import dev.inmo.micro_utils.common.Either
+import dev.inmo.micro_utils.coroutines.LinkedSupervisorScope
+import dev.inmo.micro_utils.fsm.common.StatesMachine
+import dev.inmo.micro_utils.fsm.common.dsl.FSMBuilder
+import dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManagerRepo
+import dev.inmo.micro_utils.ktor.client.UnifiedRequester
+import dev.inmo.micro_utils.ktor.common.standardKtorSerialFormat
+import dev.inmo.micro_utils.repos.KeyValueRepo
+import io.ktor.client.HttpClient
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.serialization.BinaryFormat
+import kotlinx.serialization.StringFormat
+import kotlinx.serialization.json.Json
+import org.koin.core.Koin
+import org.koin.core.context.startKoin
+import org.koin.core.module.Module
+import org.koin.core.qualifier.*
+import org.koin.core.scope.Scope
+import org.koin.dsl.module
+
+val UIScopeQualifier = StringQualifier("CoroutineScopeUI")
+val SettingsQualifier = StringQualifier("Settings")
+val UserRolesQualifier = StringQualifier("UserRoles")
+private val DBDropperQualifier = StringQualifier("DBDropper")
+private val FSMHandlersBuilderQualifier = StringQualifier("FSMHandlersBuilder")
+
+val defaultSerialFormat = Json {
+    ignoreUnknownKeys = true
+}
+
+/**
+ * Entrypoint for getting [org.koin.core.Koin] DI for the client
+ *
+ * @param repoFactory Factory for creating of [DefaultStatesManagerRepo] for [dev.inmo.postssystem.client.ui.fsm.UIFSM]
+ */
+fun baseKoin(
+    defaultScope: CoroutineScope,
+    settingsFactory: Scope.() -> KeyValueRepo<String, Any>,
+    repoFactory: Scope.() -> DefaultStatesManagerRepo<UIFSMState>,
+    handlersSetter: Pair<Scope, FSMBuilder<UIFSMState>>.() -> Unit
+): Koin = startKoin {
+    modules(
+        module {
+            single<StringFormat> { defaultSerialFormat }
+            single(SettingsQualifier) { settingsFactory() }
+            single<DBDropper>(DBDropperQualifier) { DBDropper(get(SettingsQualifier)) }
+            single(FSMHandlersBuilderQualifier) { handlersSetter }
+            single { repoFactory() }
+            single { defaultScope }
+            single(UIScopeQualifier) { get<CoroutineScope>().LinkedSupervisorScope(Dispatchers.Main) }
+            single<StatesMachine<UIFSMState>>(UIFSMQualifier) { UIFSM(get()) { (this@single to this@UIFSM).apply(get(
+                FSMHandlersBuilderQualifier
+            )) } }
+        }
+    )
+}.koin.apply {
+    loadModules(
+        listOf(
+            module { single<Koin> { this@apply } }
+        )
+    )
+    RolesManagerRoleSerializer // Just to activate it in JS client
+}
+
+fun getAuthorizedFeaturesDIModule(
+    serverUrl: String,
+    initialAuthKey: Either<AuthKey, AuthTokenInfo>,
+    onAuthKeyUpdated: suspend (AuthTokenInfo) -> Unit,
+    onUserRetrieved: suspend (User?) -> Unit,
+    onAuthKeyInvalidated: suspend () -> Unit
+): Module {
+    val serverUrlQualifier = StringQualifier("serverUrl")
+    val credsQualifier = StringQualifier("creds")
+
+    return module {
+        single(createdAtStart = true) {
+            HttpClient {
+                installClientAuthenticator(serverUrl, get(), get(credsQualifier), onAuthKeyUpdated, onUserRetrieved, onAuthKeyInvalidated)
+            }
+        }
+        single(credsQualifier) { initialAuthKey }
+        single(serverUrlQualifier) { serverUrl }
+        single<BinaryFormat> { standardKtorSerialFormat }
+        single { UnifiedRequester(get(), get()) }
+
+        single<FilesStorage> { ClientFilesStorage(get(serverUrlQualifier), get(), get()) }
+        single<ReadUsersStorage> { UsersStorageKtorClient(get(serverUrlQualifier), get()) }
+        single<UsersRolesStorage<UserRole>> { ClientUsersRolesStorage(get(serverUrlQualifier), get(), UserRole.serializer()) }
+    }
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/DefaultSettings.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/DefaultSettings.kt
@ -0,0 +1,8 @@
+package dev.inmo.postssystem.client.settings
+
+import dev.inmo.postssystem.client.settings.auth.AuthSettings
+
+
+data class DefaultSettings(
+    override val authSettings: AuthSettings
+) : Settings
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/Settings.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/Settings.kt
@ -0,0 +1,12 @@
+package dev.inmo.postssystem.client.settings
+
+import dev.inmo.postssystem.client.settings.auth.AuthSettings
+import kotlinx.coroutines.flow.StateFlow
+import org.koin.core.module.Module
+
+interface Settings {
+    val authSettings: AuthSettings
+
+    val authorizedDIModule: StateFlow<Module?>
+        get() = authSettings.authorizedDIModule
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/auth/AuthSettings.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/auth/AuthSettings.kt
@ -0,0 +1,18 @@
+package dev.inmo.postssystem.client.settings.auth
+
+import dev.inmo.postssystem.features.auth.client.ui.AuthUIError
+import dev.inmo.postssystem.features.auth.common.AuthCreds
+import dev.inmo.postssystem.features.roles.common.UserRole
+import dev.inmo.postssystem.features.users.common.User
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.StateFlow
+import org.koin.core.module.Module
+
+interface AuthSettings {
+    val authorizedDIModule: StateFlow<Module?>
+    val user: StateFlow<User?>
+    val userRoles: StateFlow<List<UserRole>>
+    val loadingJob: Job
+
+    suspend fun auth(serverUrl: String, creds: AuthCreds): AuthUIError?
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/auth/DefaultAuthSettings.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/settings/auth/DefaultAuthSettings.kt
@ -0,0 +1,118 @@
+package dev.inmo.postssystem.client.settings.auth
+
+import dev.inmo.postssystem.client.DBDropper
+import dev.inmo.postssystem.client.getAuthorizedFeaturesDIModule
+import dev.inmo.postssystem.features.auth.client.AuthUnavailableException
+import dev.inmo.postssystem.features.auth.client.ui.*
+import dev.inmo.postssystem.features.auth.common.*
+import dev.inmo.postssystem.features.roles.common.UserRole
+import dev.inmo.postssystem.features.roles.common.UsersRolesStorage
+import dev.inmo.postssystem.features.status.client.StatusFeatureClient
+import dev.inmo.postssystem.features.users.common.User
+import dev.inmo.micro_utils.common.Either
+import dev.inmo.micro_utils.common.either
+import dev.inmo.micro_utils.coroutines.plus
+import dev.inmo.micro_utils.coroutines.subscribeSafelyWithoutExceptions
+import dev.inmo.micro_utils.repos.*
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.*
+import org.koin.core.Koin
+import org.koin.core.module.Module
+
+data class DefaultAuthSettings(
+    private val repo: KeyValueRepo<String, Any>,
+    private val scope: CoroutineScope,
+    private val koin: Koin,
+    private val dbDropper: DBDropper
+) : AuthSettings {
+    private val _authorizedDIModule = MutableStateFlow<Module?>(null)
+    override val authorizedDIModule: StateFlow<Module?> = _authorizedDIModule.asStateFlow()
+    private val _user = MutableStateFlow<User?>(null)
+    override val user: StateFlow<User?> = _user.asStateFlow()
+    private val _userRoles = MutableStateFlow<List<UserRole>>(emptyList())
+    override val userRoles: StateFlow<List<UserRole>> = _userRoles.asStateFlow()
+
+    private suspend fun getCurrentServerURL() = repo.get(SERVER_URL_FIELD) as? String
+    private suspend fun getCurrentUsername() = repo.get(USERNAME_FIELD) as? String
+    private suspend fun getCurrentToken() = repo.get(TOKEN_FIELD) as? AuthTokenInfo
+
+    override val loadingJob: Job = scope.launch {
+        val serverUrl = getCurrentServerURL() ?: return@launch
+        val token = getCurrentToken() ?: return@launch
+        updateModule(serverUrl, token.either())
+    }
+
+    val rolesUpdatingJob = (user + authorizedDIModule).subscribeSafelyWithoutExceptions(scope) {
+        val user = user.value
+
+        if (user == null || authorizedDIModule.value == null) {
+            _userRoles.value = emptyList()
+        } else {
+            _userRoles.value = koin.get<UsersRolesStorage<UserRole>>().getRoles(user.id)
+        }
+        println(user)
+        println(userRoles.value)
+    }
+
+    override suspend fun auth(serverUrl: String, creds: AuthCreds): AuthUIError? {
+        return runCatching {
+            if (getCurrentServerURL() != serverUrl || getCurrentUsername() != creds.username.string) {
+                dbDropper()
+            }
+            repo.set(SERVER_URL_FIELD, serverUrl)
+            repo.set(USERNAME_FIELD, creds.username.string)
+            repo.unset(TOKEN_FIELD)
+            updateModule(serverUrl, creds.either())
+        }.onFailure {
+            it.printStackTrace()
+        }.getOrThrow()
+    }
+
+    private suspend fun updateModule(
+        serverUrl: String,
+        initialAuthKey: Either<AuthKey, AuthTokenInfo>,
+    ): AuthUIError? {
+        val currentModule = authorizedDIModule.value
+        val newModule = getAuthorizedFeaturesDIModule(
+            serverUrl,
+            initialAuthKey,
+            {
+                repo.set(TOKEN_FIELD, it)
+            },
+            {
+                _user.value = it
+            }
+        ) {
+            repo.unset(SERVER_URL_FIELD, USERNAME_FIELD, TOKEN_FIELD)
+            _authorizedDIModule.value = null
+            _user.value = null
+            throw AuthUnavailableException
+        }
+        currentModule ?.let { koin.unloadModules(listOf(currentModule)) }
+        koin.loadModules(listOf(newModule))
+        val statusFeature = koin.get<StatusFeatureClient>()
+
+        val serverAvailable = statusFeature.checkServerStatus()
+        val authCorrect = serverAvailable && runCatching {
+            statusFeature.checkServerStatusWithAuth()
+        }.getOrElse { false }
+        if (!serverAvailable && !authCorrect) {
+            koin.unloadModules(listOf(newModule))
+            currentModule ?.let { koin.loadModules(listOf(currentModule)) }
+        }
+        return when {
+            !serverAvailable -> ServerUnavailableAuthUIError
+            !authCorrect -> AuthIncorrectAuthUIError
+            else -> {
+                _authorizedDIModule.value = newModule
+                null
+            }
+        }
+    }
+
+    companion object {
+        private const val SERVER_URL_FIELD = "AuthServerURL"
+        private const val USERNAME_FIELD = "AuthUsername"
+        private const val TOKEN_FIELD = "AuthToken"
+    }
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/DefaultAuthUIModel.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/DefaultAuthUIModel.kt
@ -0,0 +1,36 @@
+package dev.inmo.postssystem.client.ui
+
+import dev.inmo.postssystem.client.settings.auth.AuthSettings
+import dev.inmo.postssystem.features.auth.client.ui.*
+import dev.inmo.postssystem.features.auth.common.AuthCreds
+import dev.inmo.postssystem.features.common.common.AbstractUIModel
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
+
+class DefaultAuthUIModel(
+    private val scope: CoroutineScope,
+    private val authSettings: AuthSettings
+) : AbstractUIModel<AuthUIState>(LoadingAuthUIState), AuthUIModel {
+    init {
+        scope.launch {
+            _currentState.value = LoadingAuthUIState
+            authSettings.loadingJob.join()
+            if (authSettings.authorizedDIModule.value == null) {
+                _currentState.value = DefaultInitAuthUIState
+            } else {
+                _currentState.value = AuthorizedAuthUIState
+            }
+        }
+    }
+
+    override suspend fun initAuth(serverUrl: String, creds: AuthCreds) {
+        _currentState.value = LoadingAuthUIState
+        val authError = authSettings.auth(serverUrl, creds)
+        if (authError == null) {
+            _currentState.value = AuthorizedAuthUIState
+        } else {
+            _currentState.value = InitAuthUIState(authError)
+        }
+    }
+
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/fsm/UIFSM.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/fsm/UIFSM.kt
@ -0,0 +1,17 @@
+package dev.inmo.postssystem.client.ui.fsm
+
+import dev.inmo.micro_utils.fsm.common.dsl.FSMBuilder
+import dev.inmo.micro_utils.fsm.common.dsl.buildFSM
+import dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManager
+import dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManagerRepo
+import org.koin.core.qualifier.StringQualifier
+
+val UIFSMQualifier = StringQualifier("UIFSM")
+
+fun UIFSM(
+    repo: DefaultStatesManagerRepo<UIFSMState>,
+    handlersSetter: FSMBuilder<UIFSMState>.() -> Unit
+) = buildFSM<UIFSMState> {
+    statesManager = DefaultStatesManager(repo)
+    handlersSetter()
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/fsm/UIFSMHandler.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/fsm/UIFSMHandler.kt
@ -0,0 +1,27 @@
+package dev.inmo.postssystem.client.ui.fsm
+
+import dev.inmo.postssystem.features.auth.client.AuthUnavailableException
+import dev.inmo.micro_utils.fsm.common.*
+
+interface   UIFSMHandler<T : UIFSMState> : StatesHandler<T, UIFSMState> {
+    suspend fun StatesMachine<in UIFSMState>.safeHandleState(state: T): UIFSMState?
+    override suspend fun StatesMachine<in UIFSMState>.handleState(state: T): UIFSMState? {
+        return runCatching {
+            safeHandleState(state).also(::println)
+        }.getOrElse {
+            errorToNextStep(state, it) ?.let { return it } ?: throw it
+        }.also(::println)
+    }
+
+    suspend fun errorToNextStep(
+        currentState: T,
+        e: Throwable
+    ): UIFSMState? = when (e) {
+        is AuthUnavailableException -> if (currentState is AuthUIFSMState) {
+            currentState
+        } else {
+            AuthUIFSMState(currentState)
+        }
+        else -> null
+    }
+}
--- a/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/fsm/UIFSMState.kt
+++ b/client/src/commonMain/kotlin/dev/inmo/postssystem/client/ui/fsm/UIFSMState.kt
@ -0,0 +1,24 @@
+package dev.inmo.postssystem.client.ui.fsm
+
+import dev.inmo.micro_utils.fsm.common.State
+import dev.inmo.micro_utils.serialization.typed_serializer.TypedSerializer
+import kotlinx.serialization.*
+
+@Serializable(UIFSMStateSerializer::class)
+sealed interface UIFSMState : State {
+    val from: UIFSMState?
+        get() = null
+    override val context: String
+        get() = "main"
+}
+
+object UIFSMStateSerializer : KSerializer<UIFSMState> by TypedSerializer(
+    "auth" to AuthUIFSMState.serializer(),
+)
+
+@Serializable
+data class AuthUIFSMState(
+    override val from: UIFSMState? = null,
+    override val context: String = "main"
+) : UIFSMState
+val DefaultAuthUIFSMState = AuthUIFSMState()
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/JSDI.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/JSDI.kt
@ -0,0 +1,92 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.postssystem.client.fsm.ui.*
+import dev.inmo.postssystem.client.ui.*
+import dev.inmo.postssystem.client.ui.fsm.*
+import dev.inmo.postssystem.client.ui.fsm.UIFSMStateSerializer
+import dev.inmo.postssystem.features.auth.client.ui.AuthUIModel
+import dev.inmo.postssystem.features.auth.client.ui.AuthUIViewModel
+import dev.inmo.postssystem.features.auth.common.AuthTokenInfo
+import dev.inmo.micro_utils.coroutines.ContextSafelyExceptionHandler
+import dev.inmo.micro_utils.repos.mappers.withMapper
+import dev.inmo.micro_utils.serialization.typed_serializer.TypedSerializer
+import kotlinx.browser.document
+import kotlinx.browser.localStorage
+import kotlinx.coroutines.*
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.serializer
+import org.koin.core.Koin
+import org.koin.core.context.loadKoinModules
+import org.koin.dsl.module
+import org.w3c.dom.HTMLElement
+
+val defaultTypedSerializer = TypedSerializer<Any>(
+    "AuthTokenInfo" to AuthTokenInfo.serializer(),
+    "String" to String.serializer(),
+    "Int" to Int.serializer(),
+    "Long" to Long.serializer(),
+    "Short" to Short.serializer(),
+    "Byte" to Byte.serializer(),
+    "Float" to Float.serializer(),
+    "Double" to Double.serializer(),
+    "UIFSMState" to UIFSMStateSerializer
+)
+
+fun baseKoin(): Koin {
+    val anyToString: suspend Any.() -> String = {
+        defaultSerialFormat.encodeToString(
+            defaultTypedSerializer,
+            this
+        )
+    }
+    return baseKoin(
+        CoroutineScope(
+            Dispatchers.Default +
+                ContextSafelyExceptionHandler { it.printStackTrace() } +
+                CoroutineExceptionHandler { _, it -> it.printStackTrace() }
+        ),
+        {
+            CookiesKeyValueRepo.withMapper<String, Any, String, String>(
+                { this },
+                {
+                    runCatching {
+                        anyToString()
+                    }.getOrElse {
+                        if (it is NoSuchElementException) {
+                            val name = this::class.simpleName!!
+                            defaultTypedSerializer.include(name, serializer())
+                            anyToString()
+                        } else {
+                            throw it
+                        }
+                    }
+                },
+                { this },
+                {
+                    defaultSerialFormat.decodeFromString(
+                        defaultTypedSerializer,
+                        this
+                    )
+                }
+            )
+        },
+        {
+            OneStateUIFSMStatesRepo(get(), localStorage)
+        }
+    ) {
+        first.apply {
+            second.apply {
+                loadKoinModules(
+                    module {
+                        factory { document.getElementById("main") as HTMLElement }
+
+                        factory<AuthUIModel> { DefaultAuthUIModel(get(), get()) }
+                        factory { AuthUIViewModel(get()) }
+                        factory { AuthView(get(), get(UIScopeQualifier))  }
+                    }
+                )
+                strictlyOn<AuthUIFSMState>(get<AuthView>())
+            }
+        }
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/Main.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/Main.kt
@ -0,0 +1,14 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.postssystem.client.ui.fsm.UIFSMQualifier
+import dev.inmo.postssystem.client.ui.fsm.UIFSMState
+import dev.inmo.micro_utils.fsm.common.StatesMachine
+import kotlinx.browser.window
+
+fun main() {
+    window.addEventListener("load", {
+        val koin = baseKoin()
+        val uiStatesMachine = koin.get<StatesMachine<UIFSMState>>(UIFSMQualifier)
+        uiStatesMachine.start(koin.get())
+    })
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/OneStateUIFSMStatesRepo.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/OneStateUIFSMStatesRepo.kt
@ -0,0 +1,63 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.postssystem.client.ui.fsm.*
+import dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManagerRepo
+import kotlinx.serialization.StringFormat
+import org.w3c.dom.*
+
+class OneStateUIFSMStatesRepo(
+    private val serialFormat: StringFormat,
+    private val storage: Storage,
+    private val initialState: UIFSMState = DefaultAuthUIFSMState
+) : DefaultStatesManagerRepo<UIFSMState> {
+    private val String.storageKey
+        get() = "${FSMStateSettingsFieldPrefix}$this"
+    private val String.UIFSMState
+        get() = runCatching {
+            serialFormat.decodeFromString(UIFSMStateSerializer, this)
+        }.onFailure { it.printStackTrace() }.getOrNull()
+
+    init {
+        if (states().isEmpty()) {
+            setState(initialState)
+        }
+    }
+
+    private fun setState(state: UIFSMState) {
+        storage[state.context.storageKey] = serialFormat.encodeToString(UIFSMStateSerializer, state)
+    }
+
+    override suspend fun getContextState(context: Any): UIFSMState? {
+        return when (context) {
+            is String -> storage[context.storageKey] ?.UIFSMState ?: return DefaultAuthUIFSMState
+            else -> null
+        }
+    }
+
+    override suspend fun contains(context: Any): Boolean = when (context) {
+        is String -> storage.get(context) ?.UIFSMState != null
+        else -> super.contains(context)
+    }
+
+    private fun states(): List<UIFSMState> = storage.iterator().asSequence().mapNotNull { (k, v) ->
+        if (k.startsWith(FSMStateSettingsFieldPrefix)) {
+            v.UIFSMState
+        } else {
+            null
+        }
+    }.toList()
+
+    override suspend fun getStates(): List<UIFSMState> = states()
+
+    override suspend fun removeState(state: UIFSMState) {
+        storage.removeItem((state.context as? String) ?.storageKey ?: return)
+    }
+
+    override suspend fun set(state: UIFSMState) {
+        setState(state)
+    }
+
+    companion object {
+        private const val FSMStateSettingsFieldPrefix = "UIFSMState_"
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/Settings.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/Settings.kt
@ -0,0 +1,82 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.pagination.utils.paginate
+import dev.inmo.micro_utils.pagination.utils.reverse
+import dev.inmo.micro_utils.repos.KeyValueRepo
+import kotlinx.browser.localStorage
+import kotlinx.coroutines.flow.*
+import org.w3c.dom.get
+import org.w3c.dom.set
+
+object CookiesKeyValueRepo : KeyValueRepo<String, String> {
+    private val _onNewValue = MutableSharedFlow<Pair<String, String>>()
+    private val _onValueRemoved = MutableSharedFlow<String>()
+    override val onNewValue: Flow<Pair<String, String>> = _onNewValue.asSharedFlow()
+    override val onValueRemoved: Flow<String> = _onValueRemoved.asSharedFlow()
+
+    override suspend fun contains(key: String): Boolean = localStorage.iterator().asSequence().any { it.first == key }
+
+    override suspend fun count(): Long = localStorage.length.toLong()
+
+    override suspend fun get(k: String): String? = localStorage[k]
+
+    override suspend fun keys(
+        v: String,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<String> = localStorage.iterator().asSequence().mapNotNull {
+        if (it.second == v) it.first else null
+    }.toList().let {
+        it.paginate(
+            if (reversed) {
+                pagination.reverse(it.count())
+            } else {
+                pagination
+            }
+        )
+    }
+
+    override suspend fun keys(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<String> = localStorage.iterator().asSequence().map { it.first }.toList().let {
+        it.paginate(
+            if (reversed) {
+                pagination.reverse(it.count())
+            } else {
+                pagination
+            }
+        )
+    }
+
+    override suspend fun values(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<String> = localStorage.iterator().asSequence().map { it.second }.toList().let {
+        it.paginate(
+            if (reversed) {
+                pagination.reverse(it.count())
+            } else {
+                pagination
+            }
+        )
+    }
+
+    override suspend fun set(toSet: Map<String, String>) {
+        toSet.forEach { (k, v) ->
+            localStorage[k] = v
+            _onNewValue.emit(k to v)
+        }
+    }
+
+    override suspend fun unset(toUnset: List<String>) {
+        toUnset.forEach {
+            localStorage[it] ?.let { _ ->
+                localStorage.removeItem(it)
+                _onValueRemoved.emit(it)
+            }
+        }
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/StorageIterator.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/StorageIterator.kt
@ -0,0 +1,19 @@
+package dev.inmo.postssystem.client
+
+import org.w3c.dom.Storage
+import org.w3c.dom.get
+
+class StorageIterator(private val storage: Storage) : Iterator<Pair<String, String>> {
+    private var index = 0
+
+    override fun hasNext(): Boolean = index < storage.length
+
+    override fun next(): Pair<String, String> {
+        val k = storage.key(index) ?: error("Key for index $index was not found")
+        val v = storage[k] ?: error("Key for index $index was not found")
+        index++
+        return k to v
+    }
+}
+
+operator fun Storage.iterator() = StorageIterator(this)
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/AuthView.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/AuthView.kt
@ -0,0 +1,120 @@
+package dev.inmo.postssystem.client.fsm.ui
+
+import dev.inmo.postssystem.client.ui.fsm.*
+import dev.inmo.postssystem.client.utils.HTMLViewContainer
+import dev.inmo.postssystem.features.auth.client.ui.*
+import dev.inmo.micro_utils.coroutines.launchSafelyWithoutExceptions
+import dev.inmo.micro_utils.coroutines.subscribeSafelyWithoutExceptions
+import dev.inmo.micro_utils.fsm.common.StatesMachine
+import kotlinx.browser.document
+import kotlinx.coroutines.*
+import kotlinx.dom.clear
+import kotlinx.html.*
+import kotlinx.html.dom.append
+import kotlinx.html.js.form
+import kotlinx.html.js.onClickFunction
+import org.w3c.dom.*
+
+class AuthView(
+    private val viewModel: AuthUIViewModel,
+    private val uiScope: CoroutineScope
+) : JSView<AuthUIFSMState>() {
+    private val usernameInput
+        get() = document.getElementById("authUsername") as? HTMLInputElement
+    private val passwordInput
+        get() = document.getElementById("authPassword") as? HTMLInputElement
+    private val authButton
+        get() = document.getElementById("authButton")
+    private val errorBadge
+        get() = document.getElementById("errorBadge") as? HTMLElement
+    private val progressBarDiv
+        get() = document.getElementById("progressBar") as? HTMLDivElement
+
+    override suspend fun StatesMachine<in UIFSMState>.safeHandleState(
+        htmlElement: HTMLElement,
+        container: HTMLViewContainer,
+        state: AuthUIFSMState
+    ): UIFSMState? {
+        val completion = CompletableDeferred<UIFSMState?>()
+        htmlElement.clear()
+
+        htmlElement.append {
+            form(classes = "vertical_container") {
+                div(classes = "mdl-textfield mdl-js-textfield mdl-textfield--floating-label") {
+                    input(type = InputType.text, classes = "mdl-textfield__input") {
+                        id = "authUsername"
+                    }
+                    label(classes = "mdl-textfield__label") {
+                        +"Имя пользователя"
+                    }
+                }
+                div(classes = "mdl-textfield mdl-js-textfield mdl-textfield--floating-label") {
+                    input(type = InputType.password, classes = "mdl-textfield__input") {
+                        id = "authPassword"
+                    }
+                    label(classes = "mdl-textfield__label") {
+                        +"Пароль"
+                    }
+                }
+                div(classes = "mdl-progress mdl-js-progress") {
+                    id = "progressBar"
+                }
+                span(classes = "material-icons mdl-badge mdl-badge--overlap gone") {
+                    id = "errorBadge"
+                    attributes["data-badge"] = "!"
+                }
+                button(classes = "mdl-button mdl-js-button mdl-button--raised") {
+                    +"Авторизоваться"
+                    id = "authButton"
+                    onClickFunction = {
+                        it.preventDefault()
+                        val serverUrl = document.location ?.run { "$hostname:$port" }
+                        val username = usernameInput ?.value
+                        val password = passwordInput ?.value
+                        if (serverUrl != null && username != null && password != null) {
+                            uiScope.launchSafelyWithoutExceptions { viewModel.initAuth(serverUrl, username, password) }
+                        }
+                    }
+                }
+            }
+        }
+
+        val viewJob = viewModel.currentState.subscribeSafelyWithoutExceptions(uiScope) {
+            when (it) {
+                is InitAuthUIState -> {
+                    usernameInput ?.removeAttribute("disabled")
+                    passwordInput ?.removeAttribute("disabled")
+                    authButton ?.removeAttribute("disabled")
+                    errorBadge ?.apply {
+                        when (it.showError) {
+                            ServerUnavailableAuthUIError -> {
+                                classList.remove("gone")
+                                innerText = "Сервер недоступен"
+                            }
+                            AuthIncorrectAuthUIError -> {
+                                classList.remove("gone")
+                                innerText = "Данные некорректны"
+                            }
+                            null -> classList.add("gone")
+                        }
+                    }
+                    progressBarDiv ?.classList ?.add("gone")
+                }
+                LoadingAuthUIState -> {
+                    usernameInput ?.setAttribute("disabled", "")
+                    passwordInput ?.setAttribute("disabled", "")
+                    authButton ?.setAttribute("disabled", "")
+                    errorBadge ?.classList ?.add("gone")
+                    progressBarDiv ?.classList ?.remove("gone")
+                }
+                AuthorizedAuthUIState -> {
+                    htmlElement.clear()
+                    completion.complete(state.from)
+                }
+            }
+        }
+        return completion.await().also {
+            viewJob.cancel()
+        }
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/Container.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/Container.kt
@ -0,0 +1,7 @@
+package dev.inmo.postssystem.client.fsm.ui
+
+import kotlinx.browser.document
+import org.w3c.dom.Element
+
+val mainContainer: Element
+    get() = document.getElementById("main")!!
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/JSView.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/JSView.kt
@ -0,0 +1,21 @@
+package dev.inmo.postssystem.client.fsm.ui
+
+import dev.inmo.postssystem.client.ui.fsm.UIFSMHandler
+import dev.inmo.postssystem.client.ui.fsm.UIFSMState
+import dev.inmo.postssystem.client.utils.HTMLViewContainer
+import dev.inmo.micro_utils.fsm.common.StatesMachine
+import org.w3c.dom.HTMLElement
+
+abstract class JSView<T : UIFSMState> : UIFSMHandler<T> {
+    open suspend fun StatesMachine<in UIFSMState>.safeHandleState(
+        htmlElement: HTMLElement,
+        container: HTMLViewContainer,
+        state: T
+    ): UIFSMState? = null
+
+    override suspend fun StatesMachine<in UIFSMState>.safeHandleState(state: T): UIFSMState? {
+        return HTMLViewContainer.from(state.context) ?.let {
+            safeHandleState(it.htmlElement ?: return null, it, state)
+        }
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/defaults/BackButton.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/fsm/ui/defaults/BackButton.kt
@ -0,0 +1,20 @@
+package dev.inmo.postssystem.client.fsm.ui.defaults
+
+import dev.inmo.postssystem.client.ui.fsm.UIFSMState
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.html.TagConsumer
+import kotlinx.html.js.button
+import kotlinx.html.js.onClickFunction
+import org.w3c.dom.HTMLElement
+
+fun TagConsumer<HTMLElement>.addBackButton(
+    completableDeferred: CompletableDeferred<UIFSMState>,
+    stateToBack: UIFSMState
+) {
+    button {
+        +"Назад"
+        onClickFunction = {
+            completableDeferred.complete(stateToBack)
+        }
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/DialogHelper.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/DialogHelper.kt
@ -0,0 +1,64 @@
+package dev.inmo.postssystem.client.utils
+
+import com.benasher44.uuid.uuid4
+import kotlinx.browser.document
+import kotlinx.html.*
+import kotlinx.html.dom.append
+import kotlinx.html.js.*
+import org.w3c.dom.*
+
+object DialogHelper {
+    fun createOneFieldDialog(
+        title: String,
+        hint: String,
+        doneButtonText: String,
+        closeButtonText: String,
+        onClose: () -> Unit,
+        onSubmit: (String) -> Unit
+    ): HTMLDialogElement {
+        lateinit var dialogElement: HTMLDialogElement
+        (document.getElementsByTagName("body").item(0) as? HTMLBodyElement) ?.append {
+            dialogElement = dialog("mdl-dialog") {
+                h4("mdl-dialog__title") {
+                    +title
+                }
+                val id = "form_${uuid4()}_text"
+                div(classes = "mdl-dialog__content") {
+                    form("#") {
+                        div("mdl-textfield mdl-js-textfield mdl-textfield--floating-label") {
+                            input(InputType.text, classes = "mdl-textfield__input") {
+                                this.id = id
+                            }
+                            label(classes = "mdl-textfield__label") {
+                                +hint
+                                attributes["for"] = id
+                            }
+                        }
+                    }
+                }
+                div(classes = "mdl-dialog__actions mdl-dialog__actions--full-width") {
+                    button(classes = "mdl-button", type = ButtonType.button) {
+                        +doneButtonText
+                        onClickFunction = {
+                            it.preventDefault()
+
+                            val input = document.getElementById(id) as? HTMLInputElement
+                            input ?.value ?.let {
+                                onSubmit(it)
+                            }
+                        }
+                    }
+                    button(classes = "mdl-button", type = ButtonType.button) {
+                        +closeButtonText
+                        onClickFunction = {
+                            it.preventDefault()
+
+                            onClose()
+                        }
+                    }
+                }
+            }
+        }
+        return dialogElement
+    }
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/DownloadFile.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/DownloadFile.kt
@ -0,0 +1,18 @@
+package dev.inmo.postssystem.client.utils
+
+import dev.inmo.postssystem.features.files.common.FullFileInfo
+import dev.inmo.micro_utils.common.toArrayBuffer
+import kotlinx.browser.document
+import org.w3c.dom.HTMLAnchorElement
+import org.w3c.dom.url.URL
+import org.w3c.files.Blob
+
+fun triggerDownloadFile(fullFileInfo: FullFileInfo) {
+    val hiddenElement = document.createElement("a") as HTMLAnchorElement
+
+    val url = URL.createObjectURL(Blob(arrayOf(fullFileInfo.byteArrayAllocator().toArrayBuffer())))
+    hiddenElement.href = url
+    hiddenElement.target = "_blank"
+    hiddenElement.download = fullFileInfo.name.name
+    hiddenElement.click()
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/HTMLViewContainer.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/HTMLViewContainer.kt
@ -0,0 +1,134 @@
+package dev.inmo.postssystem.client.utils
+
+import kotlinx.browser.document
+import kotlinx.dom.clear
+import kotlinx.html.dom.append
+import kotlinx.html.id
+import kotlinx.html.js.*
+import org.w3c.dom.HTMLElement
+import org.w3c.dom.events.Event
+
+object HTMLViewsConstants {
+    val mainContainer: MainHTMLViewContainer = MainHTMLViewContainer
+    val processesContainer: DrawerHTMLViewContainer = DrawerHTMLViewContainer
+    val toolsContainerId: ToolsHTMLViewContainer = ToolsHTMLViewContainer
+}
+
+sealed interface HTMLViewContainer {
+    val htmlElement: HTMLElement?
+        get() = document.getElementById(id) as? HTMLElement
+    val id: String
+
+    fun setIsLoading() {
+        htmlElement ?.apply {
+            clear()
+            append {
+                div("mdl-spinner mdl-js-spinner is-active")
+            }
+        }
+    }
+
+    companion object {
+        fun from(elementId: String) = when (elementId) {
+            MainHTMLViewContainer.id -> MainHTMLViewContainer
+            DrawerHTMLViewContainer.id -> DrawerHTMLViewContainer
+            ToolsHTMLViewContainer.id -> ToolsHTMLViewContainer
+            else -> null
+        }
+    }
+}
+
+object MainHTMLViewContainer : HTMLViewContainer {
+    override val id: String
+        get() = "main"
+}
+
+object DrawerHTMLViewContainer : HTMLViewContainer {
+    data class DrawerAddButtonInfo(
+        val text: String,
+        val onAddButtonClick: (Event) -> Unit,
+    )
+
+    override val id: String
+        get() = "drawer"
+
+    private val titleElement: HTMLElement?
+        get() = (document.getElementById("drawerTitle") ?:let {
+            htmlElement ?.append {
+                span("mdl-layout-title") {
+                    id = "drawerTitle"
+                }
+            } ?.first()
+        }) as? HTMLElement
+    var title: String?
+        get() = titleElement ?.textContent
+        set(value) {
+            if (value == null) {
+                titleElement ?.classList ?.add("gone")
+            } else {
+                val element = titleElement ?: return
+                element.textContent = value
+                element.classList.remove("gone")
+            }
+        }
+    private val contentElement
+        get() = (document.getElementById("drawerContent") ?:let {
+            htmlElement ?.append {
+                nav("mdl-navigation") {
+                    id = "drawerContent"
+                }
+            } ?.first()
+        }) as? HTMLElement
+
+    fun <T> setListContent(
+        title: String?,
+        data: Iterable<T>,
+        getText: (T) -> String?,
+        addButtonInfo: DrawerAddButtonInfo? = null,
+        onClick: (T) -> Unit
+    ) {
+        this.title = title
+        val contentElement = contentElement ?: return
+
+        contentElement.clear()
+        contentElement.append {
+            fun hideDrawer() {
+                // Emulate clicking for hiding of drawer
+                (document.getElementsByClassName("mdl-layout__obfuscator").item(0) as? HTMLElement) ?.click()
+            }
+            data.forEach {
+                val elementTitle = getText(it) ?: return@forEach
+                div("mdl-navigation__link") {
+                    +elementTitle
+                    onClickFunction = { _ ->
+                        onClick(it)
+                        hideDrawer()
+                    }
+                }
+            }
+            if (addButtonInfo != null) {
+                button(classes = "mdl-button mdl-js-button mdl-button--raised mdl-js-ripple-effect mdl-button--accent") {
+                    +addButtonInfo.text
+                    onClickFunction = {
+                        addButtonInfo.onAddButtonClick(it)
+                        hideDrawer()
+                    }
+                }
+            }
+        }
+    }
+
+    override fun setIsLoading() {
+        contentElement ?.apply {
+            clear()
+            append {
+                div("mdl-spinner mdl-js-spinner is-active")
+            }
+        }
+    }
+}
+
+object ToolsHTMLViewContainer : HTMLViewContainer {
+    override val id: String
+        get() = "tools"
+}
--- a/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/UploadFile.kt
+++ b/client/src/jsMain/kotlin/dev/inmo/postssystem/client/utils/UploadFile.kt
@ -0,0 +1,41 @@
+package dev.inmo.postssystem.client.utils
+
+import dev.inmo.postssystem.features.files.common.FullFileInfo
+import dev.inmo.micro_utils.common.*
+import dev.inmo.micro_utils.mime_types.KnownMimeTypes
+import dev.inmo.micro_utils.mime_types.findBuiltinMimeType
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.launch
+import org.khronos.webgl.ArrayBuffer
+import org.w3c.dom.HTMLInputElement
+import org.w3c.dom.events.Event
+import org.w3c.files.FileReader
+import org.w3c.files.get
+
+fun uploadFileCallbackForHTMLInputChange(
+    output: MutableStateFlow<FullFileInfo?>,
+    scope: CoroutineScope
+): (Event) -> Unit = {
+    (it.target as? HTMLInputElement) ?.apply {
+        files ?.also { files ->
+            files[0] ?.also { file ->
+                scope.launch {
+                    val reader: FileReader = FileReader()
+
+                    reader.onload = {
+                        val bytes = ((it.target.asDynamic()).result as ArrayBuffer).toByteArray()
+                        output.value = FullFileInfo(
+                            FileName(file.name),
+                            findBuiltinMimeType(file.type) ?: KnownMimeTypes.Any,
+                            bytes.asAllocator
+                        )
+                        Unit
+                    }
+
+                    reader.readAsArrayBuffer(file)
+                }
+            }
+        }
+    }
+}
--- a/client/src/jsMain/resources/index.html
+++ b/client/src/jsMain/resources/index.html
@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>PostsSystem</title>
+
+    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700" type="text/css">
+    <link rel="stylesheet" href="styles/material.min.css" type="text/css">
+    <link rel="stylesheet" href="styles/containers.css" type="text/css">
+    <link rel="stylesheet" href="styles/visibility.css" type="text/css">
+</head>
+<body>
+    <!-- Always shows a header, even in smaller screens. -->
+    <div class="mdl-layout mdl-js-layout mdl-layout--fixed-header">
+        <header class="mdl-layout__header">
+            <div class="mdl-layout__header-row">
+                <!-- Title -->
+                <span class="mdl-layout-title">Posts System</span>
+                <!-- Add spacer, to align navigation to the right -->
+                <div class="mdl-layout-spacer"></div>
+                <!-- Navigation. We hide it in small screens. -->
+                <nav id="tools" class="mdl-navigation mdl-layout--large-screen-only"></nav>
+            </div>
+        </header>
+        <main class="mdl-layout__content">
+            <div id="main" class="page-content"></div>
+        </main>
+    </div>
+
+    <script type="application/javascript" defer src="js/material.min.js"></script>
+    <script type="application/javascript" src="postssystem.client.js"></script>
+</body>
+</html>
--- a/client/src/jsMain/resources/js/material.min.js
+++ b/client/src/jsMain/resources/js/material.min.js
--- a/client/src/jsMain/resources/styles/containers.css
+++ b/client/src/jsMain/resources/styles/containers.css
@ -0,0 +1,5 @@
+.vertical_container {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+}
--- a/client/src/jsMain/resources/styles/material.min.css
+++ b/client/src/jsMain/resources/styles/material.min.css
--- a/client/src/jsMain/resources/styles/visibility.css
+++ b/client/src/jsMain/resources/styles/visibility.css
@ -0,0 +1,3 @@
+.gone {
+    display: none;
+}
--- a/client/src/jvmMain/kotlin/dev/inmo/postssystem/client/CMD.kt
+++ b/client/src/jvmMain/kotlin/dev/inmo/postssystem/client/CMD.kt
@ -0,0 +1,35 @@
+package dev.inmo.postssystem.client
+
+import dev.inmo.postssystem.features.users.common.ReadUsersStorage
+import dev.inmo.micro_utils.repos.pagination.getAll
+import org.koin.core.context.startKoin
+
+fun readLine(suggestionText: String): String {
+    while (true) {
+        println(suggestionText)
+        readLine() ?.let { return it }
+    }
+}
+
+suspend fun main(args: Array<String>) {
+    val serverUrl = readLine("Server url:")
+    val login = readLine("Username:")
+    val password = readLine("Password:")
+
+    val koin = startKoin {
+//        modules(getAuthorizedFeaturesDIModule(serverUrl, AuthCreds(Username(login), password)))
+    }.koin
+
+    while (true) {
+        val chosen = readLine(
+            """
+                Choose action:
+                1. Show server users
+            """.trimIndent()
+        ).toIntOrNull()
+        when (chosen) {
+            1 -> println(koin.get<ReadUsersStorage>().getAll { getByPagination(it) })
+            else -> println("Sorry, I didn't understand")
+        }
+    }
+}
--- a/client/src/main/AndroidManifest.xml
+++ b/client/src/main/AndroidManifest.xml
@ -0,0 +1 @@
+<manifest package="dev.inmo.postssystem.client"/>
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/DateTimeUtils.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/DateTimeUtils.kt
@ -1,7 +0,0 @@
-package dev.inmo.postssystem.core
-
-import com.soywiz.klock.DateTime
-
-typealias UnixMillis = Double
-val MIN_DATE = DateTime(Double.MIN_VALUE)
-val MAX_DATE = DateTime(Double.MAX_VALUE)
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/IdUtils.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/IdUtils.kt
@ -1,9 +0,0 @@
-package dev.inmo.postssystem.core
-
-import com.benasher44.uuid.uuid4
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.post.PostId
-
-fun generateId() = uuid4().toString()
-fun generatePostId(): PostId = generateId()
-fun generateContentId(): ContentId = generateId()
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/Content.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/Content.kt
@ -1,41 +0,0 @@
-package dev.inmo.postssystem.core.content
-
-import kotlinx.serialization.Serializable
-import kotlinx.serialization.modules.*
-
-typealias ContentId = String
-
-/**
- * Content which is planned to be registered in database
- */
-interface Content
-
-/**
- * That is a content which in fact just a link to another content. It would be useful in case when user wish to reuse
- * some content
- */
-@Serializable
-data class OtherContentLinkContent(
-    val otherId: ContentId
-) : Content
-
-
-fun SerializersModuleBuilder.includeContentsSerializers(
-    block: PolymorphicModuleBuilder<Content>.() -> Unit
-) {
-    polymorphic(Content::class) {
-        subclass(OtherContentLinkContent::class, OtherContentLinkContent.serializer())
-        block()
-    }
-}
-
-/**
- * Content which is already registered in database. Using its [id] you can retrieve all known
- * [dev.inmo.postssystem.core.post.RegisteredPost]s by using
- * [dev.inmo.postssystem.core.post.repo.ReadPostsRepo.getPostsByContent]
- */
-@Serializable
-data class RegisteredContent(
-    val id: ContentId,
-    val content: Content
-)
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/ContentRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/ContentRepo.kt
@ -1,6 +0,0 @@
-package dev.inmo.postssystem.core.content.api
-
-import dev.inmo.micro_utils.repos.StandardCRUDRepo
-import dev.inmo.postssystem.core.content.*
-
-interface ContentRepo : ReadContentRepo, WriteContentRepo, StandardCRUDRepo<RegisteredContent, ContentId, Content>
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/ReadContentRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/ReadContentRepo.kt
@ -1,13 +0,0 @@
-package dev.inmo.postssystem.core.content.api
-
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.content.RegisteredContent
-import dev.inmo.micro_utils.pagination.Pagination
-import dev.inmo.micro_utils.pagination.PaginationResult
-import dev.inmo.micro_utils.repos.ReadStandardCRUDRepo
-import dev.inmo.micro_utils.repos.pagination.getAll
-
-/**
- * Simple read API by different properties of [dev.inmo.postssystem.core.content.Content].
- */
-interface ReadContentRepo : ReadStandardCRUDRepo<RegisteredContent, ContentId>
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/WriteContentRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/WriteContentRepo.kt
@ -1,7 +0,0 @@
-package dev.inmo.postssystem.core.content.api
-
-import dev.inmo.micro_utils.repos.WriteStandardCRUDRepo
-import dev.inmo.postssystem.core.content.*
-import kotlinx.coroutines.flow.Flow
-
-interface WriteContentRepo : WriteStandardCRUDRepo<RegisteredContent, ContentId, Content>
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/BusinessContentRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/BusinessContentRepo.kt
@ -1,117 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business
-
-import dev.inmo.micro_utils.pagination.*
-import dev.inmo.micro_utils.repos.UpdatedValuePair
-import dev.inmo.postssystem.core.content.*
-import dev.inmo.postssystem.core.content.api.*
-import dev.inmo.postssystem.core.generateContentId
-import kotlinx.coroutines.flow.*
-
-interface BusinessContentRepoContentAdapter {
-    val type: AdapterType
-    suspend fun storeContent(contentId: ContentId, content: Content): Boolean
-    suspend fun getContent(contentId: ContentId): Content?
-    suspend fun removeContent(contentId: ContentId)
-}
-
-class BusinessReadContentRepo(
-    adapters: List<BusinessContentRepoContentAdapter>,
-    private val helperRepo: BusinessContentRepoReadHelper,
-) : ReadContentRepo {
-    private val adaptersMap: Map<String, BusinessContentRepoContentAdapter> = adapters.map {
-        it.type to it
-    }.toMap()
-    override suspend fun contains(id: ContentId): Boolean = helperRepo.contains(id)
-
-    override suspend fun count(): Long = helperRepo.count()
-
-    override suspend fun getById(id: ContentId): RegisteredContent? = helperRepo.getType(id) ?.let {
-        adaptersMap[it] ?.getContent(id) ?.let { content ->
-            RegisteredContent(id, content)
-        }
-    }
-
-    override suspend fun getByPagination(
-        pagination: Pagination
-    ): PaginationResult<RegisteredContent> = helperRepo.getKeysByPagination(
-        pagination
-    ).let {
-        it.results.mapNotNull {
-            getById(it)
-        }.createPaginationResult(
-            it,
-            count()
-        )
-    }
-}
-
-class BusinessWriteContentRepo(
-    private val adapters: List<BusinessContentRepoContentAdapter>,
-    private val helperRepo: BusinessContentRepoHelper
-) : WriteContentRepo {
-    private val adaptersMap = adapters.map { it.type to it }.toMap()
-    private val _deletedObjectsIdsFlow = MutableSharedFlow<ContentId>()
-    override val deletedObjectsIdsFlow: Flow<ContentId> = _deletedObjectsIdsFlow.asSharedFlow()
-    private val _newObjectsFlow = MutableSharedFlow<RegisteredContent>()
-    override val newObjectsFlow: Flow<RegisteredContent> = _newObjectsFlow.asSharedFlow()
-    private val _updatedObjectsFlow = MutableSharedFlow<RegisteredContent>()
-    override val updatedObjectsFlow: Flow<RegisteredContent> = _updatedObjectsFlow.asSharedFlow()
-
-    override suspend fun create(values: List<Content>): List<RegisteredContent> {
-        return values.mapNotNull { content ->
-            if (content is OtherContentLinkContent) {
-                adapters.forEach {
-                    val existsContent = it.getContent(content.otherId)
-                    if (existsContent != null) {
-                        return@mapNotNull RegisteredContent(
-                            content.otherId,
-                            existsContent
-                        )
-                    }
-                }
-            }
-            val contentId = generateContentId()
-            val adapter = adapters.firstOrNull { it.storeContent(contentId, content) } ?: return@mapNotNull null
-            if (!helperRepo.saveType(contentId, adapter.type)) {
-                adapter.removeContent(contentId)
-            }
-            RegisteredContent(contentId, content).also { _newObjectsFlow.emit(it) }
-        }
-    }
-
-    override suspend fun deleteById(ids: List<ContentId>) {
-        ids.forEach { contentId ->
-            adaptersMap[helperRepo.getType(contentId)] ?.removeContent(contentId) ?: adapters.forEach {
-                it.removeContent(contentId)
-            }
-            helperRepo.deleteContentId(contentId)
-            _deletedObjectsIdsFlow.emit(contentId)
-        }
-    }
-
-    override suspend fun update(id: ContentId, value: Content): RegisteredContent? {
-        adaptersMap[helperRepo.getType(id)] ?.removeContent(id) ?: adapters.forEach {
-            it.removeContent(id)
-        }
-        adapters.firstOrNull { it.storeContent(id, value) } ?: return null
-        return RegisteredContent(id, value).also { _updatedObjectsFlow.emit(it) }
-    }
-
-    override suspend fun update(values: List<UpdatedValuePair<ContentId, Content>>): List<RegisteredContent> {
-        return values.mapNotNull {
-            update(it.first, it.second)
-        }
-    }
-
-}
-
-class BusinessContentRepo(
-    adapters: List<BusinessContentRepoContentAdapter>,
-    helperRepo: BusinessContentRepoHelper
-) : ContentRepo, ReadContentRepo by BusinessReadContentRepo(
-    adapters,
-    helperRepo
-), WriteContentRepo by BusinessWriteContentRepo(
-    adapters,
-    helperRepo
-)
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/BusinessContentRepoHelper.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/BusinessContentRepoHelper.kt
@ -1,59 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business
-
-import dev.inmo.micro_utils.pagination.Pagination
-import dev.inmo.micro_utils.pagination.PaginationResult
-import dev.inmo.micro_utils.repos.*
-import dev.inmo.postssystem.core.content.ContentId
-
-typealias AdapterType = String
-
-interface BusinessContentRepoReadHelper : Repo {
-    suspend fun getKeysByPagination(pagination: Pagination): PaginationResult<ContentId>
-    suspend fun contains(contentId: ContentId): Boolean
-    suspend fun getType(contentId: ContentId): AdapterType?
-    suspend fun count(): Long
-}
-interface BusinessContentRepoWriteHelper : Repo {
-    suspend fun deleteContentId(contentId: ContentId)
-    suspend fun saveType(contentId: ContentId, type: AdapterType): Boolean
-}
-interface BusinessContentRepoHelper : BusinessContentRepoReadHelper, BusinessContentRepoWriteHelper
-
-class KeyValueBusinessContentRepoReadHelper(
-    private val keyValueRepo: ReadStandardKeyValueRepo<ContentId, AdapterType>
-) : BusinessContentRepoReadHelper {
-    override suspend fun getKeysByPagination(pagination: Pagination): PaginationResult<ContentId> = keyValueRepo.keys(pagination)
-    override suspend fun contains(contentId: ContentId): Boolean = keyValueRepo.contains(contentId)
-    override suspend fun getType(contentId: ContentId): AdapterType? = keyValueRepo.get(contentId)
-    override suspend fun count(): Long = keyValueRepo.count()
-}
-
-class KeyValueBusinessContentRepoWriteHelper(
-    private val keyValueRepo: WriteStandardKeyValueRepo<ContentId, AdapterType>
-) : BusinessContentRepoWriteHelper {
-    override suspend fun deleteContentId(contentId: ContentId) { keyValueRepo.unset(contentId) }
-
-    override suspend fun saveType(contentId: ContentId, type: AdapterType): Boolean {
-        keyValueRepo.set(contentId, type)
-        return true
-    }
-}
-
-class KeyValueBusinessContentRepoHelper(
-    private val keyValueRepo: StandardKeyValueRepo<ContentId, AdapterType>
-) : BusinessContentRepoHelper, BusinessContentRepoReadHelper by KeyValueBusinessContentRepoReadHelper(
-    keyValueRepo
-), BusinessContentRepoWriteHelper by KeyValueBusinessContentRepoWriteHelper(
-    keyValueRepo
-)
-
-fun StandardKeyValueRepo<ContentId, AdapterType>.asBusinessContentRepo(
-    adapters: List<BusinessContentRepoContentAdapter>
-) = BusinessContentRepo(
-    adapters,
-    KeyValueBusinessContentRepoHelper(this)
-)
-
-fun StandardKeyValueRepo<ContentId, AdapterType>.asBusinessContentRepo(
-    vararg adapters: BusinessContentRepoContentAdapter
-) = asBusinessContentRepo(adapters.toList())
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/KeyValueBusinessContentRepoAdapter.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/KeyValueBusinessContentRepoAdapter.kt
@ -1,29 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business.content_adapters
-
-import dev.inmo.micro_utils.repos.*
-import dev.inmo.postssystem.core.content.Content
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.content.api.business.AdapterType
-import dev.inmo.postssystem.core.content.api.business.BusinessContentRepoContentAdapter
-
-class KeyValueBusinessContentRepoAdapter<T>(
-    override val type: AdapterType,
-    private val keyValueRepo: StandardKeyValueRepo<ContentId, T>,
-    private val contentToData: suspend (Content) -> T?,
-    private val dataToContent: suspend (T) -> Content
-) : BusinessContentRepoContentAdapter {
-    override suspend fun storeContent(contentId: ContentId, content: Content): Boolean {
-        keyValueRepo.set(contentId, contentToData(content) ?: return false)
-        return true
-    }
-
-    override suspend fun getContent(contentId: ContentId): Content? {
-        return dataToContent(
-            keyValueRepo.get(contentId) ?: return null
-        )
-    }
-
-    override suspend fun removeContent(contentId: ContentId) {
-        keyValueRepo.unset(contentId)
-    }
-}
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/binary/BinaryBusinessContentRepoContentAdapter.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/binary/BinaryBusinessContentRepoContentAdapter.kt
@ -1,54 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business.content_adapters.binary
-
-import dev.inmo.micro_utils.repos.*
-import dev.inmo.postssystem.core.content.Content
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.content.api.business.AdapterType
-import dev.inmo.postssystem.core.content.api.business.BusinessContentRepoContentAdapter
-import dev.inmo.postssystem.core.content.api.business.content_adapters.KeyValueBusinessContentRepoAdapter
-import kotlinx.serialization.json.Json
-
-private val format = Json { ignoreUnknownKeys = true }
-
-class BinaryBusinessContentRepoContentAdapter(
-    private val dataStore: KeyValueRepo<ContentId, String>,
-    private val filesStore: KeyValueRepo<ContentId, ByteArray>,
-    private val removeOnAbsentInOneOfStores: Boolean = false
-) : BusinessContentRepoContentAdapter {
-    override val type: AdapterType
-        get() = "binary"
-
-    override suspend fun storeContent(contentId: ContentId, content: Content): Boolean {
-        (content as? BinaryContent) ?.also {
-            filesStore.set(contentId, it.dataAllocator())
-            dataStore.set(
-                contentId,
-                format.encodeToString(BinaryContent.serializer(), it.copy { ByteArray(0) })
-            )
-        } ?: return false
-        return true
-    }
-
-    override suspend fun getContent(contentId: ContentId): Content? {
-        return filesStore.get(contentId) ?.let {
-            val serializedData = dataStore.get(contentId)
-            if (serializedData != null) {
-                format.decodeFromString(BinaryContent.serializer(), serializedData).copy {
-                    it
-                }
-            } else {
-                null
-            }
-        } ?: null.also {
-            if (removeOnAbsentInOneOfStores) {
-                filesStore.unset(contentId)
-                dataStore.unset(contentId)
-            }
-        }
-    }
-
-    override suspend fun removeContent(contentId: ContentId) {
-        filesStore.unset(contentId)
-        dataStore.unset(contentId)
-    }
-}
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/binary/BinaryContent.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/binary/BinaryContent.kt
@ -1,19 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business.content_adapters.binary
-
-import dev.inmo.micro_utils.common.ByteArrayAllocator
-import dev.inmo.micro_utils.common.ByteArrayAllocatorSerializer
-import dev.inmo.micro_utils.mime_types.KnownMimeTypes
-import dev.inmo.micro_utils.mime_types.MimeType
-import dev.inmo.postssystem.core.content.Content
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class BinaryContent(
-    val mimeType: MimeType,
-    val originalFileName: String,
-    @Serializable(ByteArrayAllocatorSerializer::class)
-    val dataAllocator: ByteArrayAllocator
-) : Content
-
-val BinaryContent.isImage: Boolean
-    get() = mimeType is KnownMimeTypes.Image
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/text/TextBusinessContentRepoContentAdapter.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/text/TextBusinessContentRepoContentAdapter.kt
@ -1,15 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business.content_adapters.text
-
-import dev.inmo.micro_utils.repos.*
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.content.api.business.BusinessContentRepoContentAdapter
-import dev.inmo.postssystem.core.content.api.business.content_adapters.KeyValueBusinessContentRepoAdapter
-
-class TextBusinessContentRepoContentAdapter(
-    private val keyValueRepo: StandardKeyValueRepo<ContentId, String>
-) : BusinessContentRepoContentAdapter by KeyValueBusinessContentRepoAdapter(
-    "regularText",
-    keyValueRepo,
-    { (it as? TextContent) ?.text },
-    { TextContent(it) }
-)
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/text/TextContent.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/text/TextContent.kt
@ -1,9 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business.content_adapters.text
-
-import dev.inmo.postssystem.core.content.Content
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class TextContent(
-    val text: String
-) : Content
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/Post.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/Post.kt
@ -1,61 +0,0 @@
-package dev.inmo.postssystem.core.post
-
-import dev.inmo.postssystem.core.UnixMillis
-import dev.inmo.postssystem.core.content.ContentId
-import com.soywiz.klock.DateTime
-import kotlinx.serialization.Serializable
-import kotlinx.serialization.Transient
-
-typealias PostId = String
-typealias ContentIds = List<ContentId>
-
-/**
- * Base interface for creating of new post. Usually, it is just [SimplePost] instance
- */
-@Serializable
-sealed class Post {
-    abstract val content: ContentIds
-}
-
-/**
- * Root entity of the whole system. Can be retrieved from [dev.inmo.postssystem.core.post.repo.ReadPostsRepo]
- * by getting and created in [dev.inmo.postssystem.core.post.repo.WritePostsRepo] by inserting of [Post]
- * instance
- */
-@Serializable
-sealed class RegisteredPost : Post() {
-    abstract val id: PostId
-
-    abstract override val content: ContentIds
-
-    abstract val creationDate: DateTime
-}
-
-/**
- * Base and currently (1st Nov 2019) single realisation of [Post]. There is [SimpleRegisteredPost] which is technically
- * is [Post] too, but it is not direct [Post] realisation
- */
-@Serializable
-data class SimplePost(
-    override val content: ContentIds
-) : Post()
-
-/**
- * Base and currently (1st Nov 2019) single realisation of [RegisteredPost]
- */
-@Serializable
-data class SimpleRegisteredPost(
-    override val id: PostId,
-    override val content: ContentIds,
-    private val creationDateTimeMillis: UnixMillis
-) : RegisteredPost() {
-    @Transient
-    override val creationDate: DateTime = DateTime(creationDateTimeMillis)
-}
-
-@Suppress("FunctionName")
-fun RegisteredPost(
-    id: PostId,
-    content: ContentIds,
-    creationDate: DateTime
-) = SimpleRegisteredPost(id, content, creationDate.unixMillis)
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/repo/PostsRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/repo/PostsRepo.kt
@ -1,3 +0,0 @@
-package dev.inmo.postssystem.core.post.repo
-
-interface PostsRepo : ReadPostsRepo, WritePostsRepo
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/repo/ReadPostsRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/repo/ReadPostsRepo.kt
@ -1,53 +0,0 @@
-package dev.inmo.postssystem.core.post.repo
-
-import dev.inmo.postssystem.core.MAX_DATE
-import dev.inmo.postssystem.core.MIN_DATE
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.post.PostId
-import dev.inmo.postssystem.core.post.RegisteredPost
-import com.soywiz.klock.DateTime
-import dev.inmo.micro_utils.pagination.*
-
-/**
- * Simple read API by different properties
- */
-interface ReadPostsRepo {
-    /**
-     * @return [Set] of [PostId]s which can be used to get data using [getPostById]
-     */
-    suspend fun getPostsIds(): Set<PostId>
-
-    /**
-     * @return [RegisteredPost] if it is available by [id]
-     */
-    suspend fun getPostById(id: PostId): RegisteredPost?
-
-    /**
-     * @return all [RegisteredPost]s which contains content with specified content [id]
-     */
-    suspend fun getPostsByContent(id: ContentId): List<RegisteredPost>
-
-    /**
-     * @return all [RegisteredPost]s which was registered between [from] and [to]. Range will be used INCLUSIVE, line \[[from], [to]\]
-     */
-    suspend fun getPostsByCreatingDates(
-        from: DateTime = MIN_DATE,
-        to: DateTime = MAX_DATE,
-        pagination: Pagination = FirstPagePagination()
-    ): PaginationResult<RegisteredPost>
-
-    /**
-     * @return all posts by pages basing on their creation date
-     */
-    suspend fun getPostsByPagination(pagination: Pagination): PaginationResult<RegisteredPost>
-}
-
-suspend fun ReadPostsRepo.getPostsByCreatingDates(
-    from: DateTime? = null,
-    to: DateTime? = null,
-    pagination: Pagination = FirstPagePagination()
-) = getPostsByCreatingDates(
-    from ?: MIN_DATE,
-    to ?: MAX_DATE,
-    pagination
-)
--- a/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/repo/WritePostsRepo.kt
+++ b/core/api/src/commonMain/kotlin/dev/inmo/postssystem/core/post/repo/WritePostsRepo.kt
@ -1,21 +0,0 @@
-package dev.inmo.postssystem.core.post.repo
-
-import dev.inmo.postssystem.core.post.*
-import kotlinx.coroutines.flow.Flow
-
-interface WritePostsRepo {
-    val postCreatedFlow: Flow<RegisteredPost>
-    val postDeletedFlow: Flow<RegisteredPost>
-    val postUpdatedFlow: Flow<RegisteredPost>
-
-    /**
-     * For creating of post you need to create all its [dev.inmo.postssystem.core.content.RegisteredContent]
-     * and (or just) retrieve their [ContentIds] and put it into some [Post] implementation line [SimplePost].
-     *
-     * This method SHOULD use [PostId] of [RegisteredPost.id] in case if [RegisteredPost] passed
-     */
-    suspend fun createPost(post: Post): RegisteredPost?
-    suspend fun deletePost(id: PostId): Boolean
-
-    suspend fun updatePostContent(postId: PostId, post: Post): Boolean
-}
--- a/core/api/src/commonTest/kotlin/dev/inmo/postssystem/core/api/ContentSerialization.kt
+++ b/core/api/src/commonTest/kotlin/dev/inmo/postssystem/core/api/ContentSerialization.kt
@ -1,75 +0,0 @@
-package dev.inmo.postssystem.core.api
-
-import dev.inmo.micro_utils.common.ByteArrayAllocator
-import dev.inmo.micro_utils.mime_types.KnownMimeTypes
-import dev.inmo.postssystem.core.content.*
-import dev.inmo.postssystem.core.content.api.business.content_adapters.binary.BinaryContent
-import dev.inmo.postssystem.core.content.api.business.content_adapters.text.TextContent
-import dev.inmo.postssystem.core.generateContentId
-import kotlinx.serialization.json.Json
-import kotlinx.serialization.modules.SerializersModule
-import kotlinx.serialization.modules.polymorphic
-import kotlin.test.Test
-import kotlin.test.assertEquals
-
-private val jsonFormat = Json {
-    serializersModule = SerializersModule {
-        polymorphic(Content::class) {
-            subclass(TextContent::class, TextContent.serializer())
-            subclass(BinaryContent::class, BinaryContent.serializer())
-        }
-    }
-}
-
-class ContentSerialization {
-    private val simpleTextTestEntries = 10
-    private val simpleSpecialTestEntries = 10
-
-    @Test
-    fun test_that_content_correctly_serializing_and_deserializing() {
-        val contents = (0 until simpleTextTestEntries).map {
-            TextContent("Example$it")
-        } + (0 until simpleSpecialTestEntries).map {
-            BinaryContent(KnownMimeTypes.Any, "$it.example") {
-                byteArrayOf(it.toByte())
-            }
-        }
-
-        val registeredContentFakes = contents.map { content ->
-            RegisteredContent(
-                generateContentId(),
-                content
-            )
-        }
-
-        val stringified = registeredContentFakes.map {
-            jsonFormat.encodeToString(RegisteredContent.serializer(), it)
-        }
-
-        val parsed = stringified.map {
-            jsonFormat.decodeFromString(RegisteredContent.serializer(), it)
-        }
-
-        parsed.forEachIndexed { i, registeredContent ->
-            val content = registeredContent.content
-            assertEquals(registeredContentFakes[i].id, registeredContent.id)
-            when (content) {
-                is TextContent -> assertEquals(registeredContentFakes[i].content, content)
-                is BinaryContent -> {
-                    val expectedContent = registeredContentFakes[i].content as BinaryContent
-                    val fakeByteArrayAllocator: ByteArrayAllocator = { byteArrayOf() }
-                    assertEquals(
-                        expectedContent.copy(dataAllocator = fakeByteArrayAllocator),
-                        content.copy(dataAllocator = fakeByteArrayAllocator)
-                    )
-                    val expectedData = expectedContent.dataAllocator()
-                    val parsedData = content.dataAllocator()
-                    assertEquals(expectedData.size, parsedData.size)
-                    expectedData.withIndex().forEach { (i, byte) ->
-                        assertEquals(byte, parsedData[i])
-                    }
-                }
-            }
-        }
-    }
-}
--- a/core/api/src/jvmMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/binary/FilesStoreRepoAdapter.kt
+++ b/core/api/src/jvmMain/kotlin/dev/inmo/postssystem/core/content/api/business/content_adapters/binary/FilesStoreRepoAdapter.kt
@ -1,79 +0,0 @@
-package dev.inmo.postssystem.core.content.api.business.content_adapters.binary
-
-import dev.inmo.micro_utils.coroutines.doOutsideOfCoroutine
-import dev.inmo.micro_utils.coroutines.safelyWithoutExceptions
-import dev.inmo.micro_utils.pagination.*
-import dev.inmo.micro_utils.repos.KeyValueRepo
-import dev.inmo.micro_utils.repos.set
-import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.map
-import java.io.File
-
-class FilesStoreRepoAdapter(
-    private val filesRepo: KeyValueRepo<String, File>,
-    private val temporalFilesFolder: File
-) : KeyValueRepo<String, ByteArray> {
-    private val File.asByteArray
-        get() = readBytes()
-    override val onNewValue: Flow<Pair<String, ByteArray>> = filesRepo.onNewValue.map { (filename, file) ->
-        filename to file.asByteArray
-    }
-    override val onValueRemoved: Flow<String> = filesRepo.onValueRemoved
-
-    init {
-        temporalFilesFolder.mkdirs()
-    }
-
-    override suspend fun contains(key: String): Boolean = filesRepo.contains(key)
-
-    override suspend fun count(): Long = filesRepo.count()
-
-    override suspend fun get(k: String): ByteArray? = filesRepo.get(k) ?.asByteArray
-
-    override suspend fun keys(
-        v: ByteArray,
-        pagination: Pagination,
-        reversed: Boolean
-    ): PaginationResult<String> = emptyPaginationResult()
-
-    override suspend fun keys(
-        pagination: Pagination,
-        reversed: Boolean
-    ): PaginationResult<String> = filesRepo.keys(pagination, reversed)
-
-    override suspend fun set(toSet: Map<String, ByteArray>) {
-        supervisorScope {
-            toSet.map { (filename, bytes) ->
-                launch {
-                    safelyWithoutExceptions {
-                        val file = File(temporalFilesFolder, filename).also {
-                            it.delete()
-                            doOutsideOfCoroutine {
-                                it.createNewFile()
-                                it.writeBytes(bytes)
-                            }
-                        }
-                        filesRepo.set(filename, file)
-                        doOutsideOfCoroutine { file.delete() }
-                    }
-                }
-            }
-        }.joinAll()
-    }
-
-    override suspend fun unset(toUnset: List<String>) = filesRepo.unset(toUnset)
-
-    override suspend fun values(
-        pagination: Pagination,
-        reversed: Boolean
-    ): PaginationResult<ByteArray> = filesRepo.values(pagination, reversed).let {
-        PaginationResult(
-            it.page,
-            it.pagesNumber,
-            it.results.map { it.readBytes() },
-            it.size
-        )
-    }
-
-}
--- a/core/api/src/main/AndroidManifest.xml
+++ b/core/api/src/main/AndroidManifest.xml
@ -1 +0,0 @@
-<manifest package="dev.inmo.postssystem.core.api"/>
--- a/core/exposed/build.gradle
+++ b/core/exposed/build.gradle
@ -1,26 +0,0 @@
-plugins {
-    id "org.jetbrains.kotlin.multiplatform"
-    id "org.jetbrains.kotlin.plugin.serialization"
-}
-
-apply from: "$mppJavaProjectPresetPath"
-
-kotlin {
-    sourceSets {
-        commonMain {
-            dependencies {
-                api "dev.inmo:micro_utils.repos.exposed:$microutils_version"
-
-                api project(":postssystem.core.api")
-            }
-        }
-        jvmTest {
-            dependencies {
-                implementation "org.jetbrains.exposed:exposed-jdbc:$exposed_version"
-                implementation "org.xerial:sqlite-jdbc:$test_sqlite_version"
-                implementation "org.jetbrains.kotlin:kotlin-test"
-                implementation "org.jetbrains.kotlin:kotlin-test-junit"
-            }
-        }
-    }
-}
--- a/core/exposed/gradle.properties
+++ b/core/exposed/gradle.properties
@ -1 +0,0 @@
-test_sqlite_version=3.28.0
--- a/core/exposed/src/jvmMain/kotlin/dev/inmo/postssystem/core/exposed/ExposedPostsRepo.kt
+++ b/core/exposed/src/jvmMain/kotlin/dev/inmo/postssystem/core/exposed/ExposedPostsRepo.kt
@ -1,205 +0,0 @@
-package dev.inmo.postssystem.core.exposed
-
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.generatePostId
-import dev.inmo.postssystem.core.post.*
-import dev.inmo.postssystem.core.post.repo.PostsRepo
-import com.soywiz.klock.*
-import dev.inmo.micro_utils.pagination.*
-import dev.inmo.micro_utils.repos.exposed.ExposedRepo
-import dev.inmo.micro_utils.repos.exposed.initTable
-import kotlinx.coroutines.channels.BroadcastChannel
-import kotlinx.coroutines.channels.Channel
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.asFlow
-import org.jetbrains.exposed.sql.*
-import org.jetbrains.exposed.sql.transactions.transaction
-
-private class PostsRepoContentRelations(
-    override val database: Database
-) : Table(), ExposedRepo {
-    private val postIdColumn = text("postId")
-    private val contentIdColumn = text("contentId")
-
-    init {
-        initTable()
-    }
-
-    fun getPostContents(postId: PostId): List<ContentId> {
-        return transaction(db = database) {
-            select { postIdColumn.eq(postId) }.map { it[contentIdColumn] }
-        }
-    }
-
-    fun getContentPosts(contentId: ContentId): List<PostId> {
-        return transaction(db = database) {
-            select { contentIdColumn.eq(contentId) }.map { it[postIdColumn] }
-        }
-    }
-
-    fun linkPostAndContents(postId: PostId, vararg contentIds: ContentId) {
-        transaction(db = database) {
-            val leftToPut = contentIds.toSet() - getPostContents(postId)
-            leftToPut.forEach { contentId ->
-                insert {
-                    it[postIdColumn] = postId
-                    it[contentIdColumn] = contentId
-                }
-            }
-        }
-    }
-    fun unlinkPostAndContents(postId: PostId, vararg contentIds: ContentId): Boolean {
-        return transaction(db = database) {
-            deleteWhere {
-                postIdColumn.eq(postId).and(contentIdColumn.inList(contentIds.toList()))
-            } > 0
-        }
-    }
-}
-
-private val dateTimeFormat = DateFormat("EEE, dd MMM yyyy HH:mm:ss z")
-
-private class PostsRepoDatabaseTable(
-    private val database: Database,
-    tableName: String = ""
-) : PostsRepo, Table(tableName) {
-    private val contentsTable = PostsRepoContentRelations(database)
-
-    private val idColumn = text("postId")
-    private val creationDateColumn = text("creationDate").default(
-        DateTime.now().toString(dateTimeFormat)
-    )
-
-
-    private val postCreatedBroadcastChannel = BroadcastChannel<RegisteredPost>(Channel.BUFFERED)
-    override val postCreatedFlow: Flow<RegisteredPost> = postCreatedBroadcastChannel.asFlow()
-
-    private val postDeletedBroadcastChannel = BroadcastChannel<RegisteredPost>(Channel.BUFFERED)
-    override val postDeletedFlow: Flow<RegisteredPost> = postDeletedBroadcastChannel.asFlow()
-
-    private val postUpdatedBroadcastChannel = BroadcastChannel<RegisteredPost>(Channel.BUFFERED)
-    override val postUpdatedFlow: Flow<RegisteredPost> = postUpdatedBroadcastChannel.asFlow()
-
-    init {
-        transaction (db = database) {
-            SchemaUtils.createMissingTablesAndColumns(this@PostsRepoDatabaseTable)
-        }
-    }
-
-    private fun ResultRow.toRegisteredPost(): RegisteredPost = get(idColumn).let { id ->
-        SimpleRegisteredPost(
-            id,
-            contentsTable.getPostContents(id),
-            dateTimeFormat.parse(get(creationDateColumn)).local.unixMillis
-        )
-    }
-
-    override suspend fun createPost(post: Post): RegisteredPost? {
-        val id = (post as? RegisteredPost) ?.let { it.id } ?: generatePostId()
-        return transaction(
-            db = database
-        ) {
-            insert {
-                it[idColumn] = id
-            }
-            contentsTable.linkPostAndContents(id, *post.content.toTypedArray())
-            select { idColumn.eq(id) }.firstOrNull() ?.toRegisteredPost()
-        } ?.also {
-            postCreatedBroadcastChannel.send(it)
-        }
-    }
-
-    override suspend fun deletePost(id: PostId): Boolean {
-        val post = getPostById(id) ?: return false
-        return (transaction(
-            db = database
-        ) {
-            deleteWhere { idColumn.eq(id) }
-        } > 0).also {
-            if (it) {
-                postDeletedBroadcastChannel.send(post)
-                contentsTable.unlinkPostAndContents(id, *post.content.toTypedArray())
-            }
-        }
-    }
-
-    override suspend fun updatePostContent(postId: PostId, post: Post): Boolean {
-        return transaction(
-            db = database
-        ) {
-            val alreadyLinked = contentsTable.getPostContents(postId)
-            val toRemove = alreadyLinked - post.content
-            val toInsert = post.content - alreadyLinked
-            val updated = (toRemove.isNotEmpty() && contentsTable.unlinkPostAndContents(postId, *toRemove.toTypedArray())) || toInsert.isNotEmpty()
-            if (toInsert.isNotEmpty()) {
-                contentsTable.linkPostAndContents(postId, *toInsert.toTypedArray())
-            }
-            updated
-        }.also {
-            if (it) {
-                getPostById(postId) ?.also { updatedPost -> postUpdatedBroadcastChannel.send(updatedPost) }
-            }
-        }
-    }
-    override suspend fun getPostsIds(): Set<PostId> {
-        return transaction(
-            db = database
-        ) {
-            selectAll().map { it[idColumn] }.toSet()
-        }
-    }
-
-    override suspend fun getPostById(id: PostId): RegisteredPost? {
-        return transaction(
-            db = database
-        ) {
-            select { idColumn.eq(id) }.firstOrNull() ?.toRegisteredPost()
-        }
-    }
-
-    override suspend fun getPostsByContent(id: ContentId): List<RegisteredPost> {
-        return transaction(
-            db = database
-        ) {
-            val postsIds = contentsTable.getContentPosts(id)
-            select { idColumn.inList(postsIds) }.map { it.toRegisteredPost() }
-        }
-    }
-
-    override suspend fun getPostsByCreatingDates(
-        from: DateTime,
-        to: DateTime,
-        pagination: Pagination
-    ): PaginationResult<RegisteredPost> {
-        return transaction(
-            db = database
-        ) {
-            select { creationDateColumn.between(from, to) }.paginate(
-                pagination
-            ).map {
-                it.toRegisteredPost()
-            }.createPaginationResult(
-                pagination,
-                selectAll().count()
-            )
-        }
-    }
-
-    override suspend fun getPostsByPagination(pagination: Pagination): PaginationResult<RegisteredPost> {
-        return transaction(
-            db = database
-        ) {
-            val posts = selectAll().paginate(pagination).orderBy(creationDateColumn).map {
-                it.toRegisteredPost()
-            }
-            val postsNumber = selectAll().count()
-            posts.createPaginationResult(pagination, postsNumber)
-        }
-    }
-
-}
-
-class ExposedPostsRepo (
-    database: Database,
-    tableName: String = ""
-) : PostsRepo by PostsRepoDatabaseTable(database, tableName)
--- a/core/exposed/src/jvmTest/kotlin/dev/inmo/postssystem/core/exposed/ExposedContentAPICommonTests.kt
+++ b/core/exposed/src/jvmTest/kotlin/dev/inmo/postssystem/core/exposed/ExposedContentAPICommonTests.kt
@ -1,86 +0,0 @@
-package dev.inmo.postssystem.core.exposed
-
-import dev.inmo.micro_utils.repos.create
-import dev.inmo.micro_utils.repos.deleteById
-import dev.inmo.micro_utils.repos.exposed.keyvalue.ExposedKeyValueRepo
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.content.api.business.AdapterType
-import dev.inmo.postssystem.core.content.api.business.asBusinessContentRepo
-import dev.inmo.postssystem.core.content.api.business.content_adapters.text.TextBusinessContentRepoContentAdapter
-import dev.inmo.postssystem.core.content.api.business.content_adapters.text.TextContent
-import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.first
-import org.jetbrains.exposed.sql.Database
-import org.jetbrains.exposed.sql.transactions.transactionManager
-import java.io.File
-import java.sql.Connection
-import kotlin.test.Test
-import kotlin.test.assertEquals
-
-class ExposedContentRepoCommonTests {
-    private val tempFolder = System.getProperty("java.io.tmpdir")!!
-
-    @Test
-    fun `Test that it is possible to use several different databases at one time`() {
-        val numberOfDatabases = 8
-
-        val databaseFiles = (0 until numberOfDatabases).map {
-            "$tempFolder/ExposedContentAPICommonTestsDB$it.db"
-        }
-
-        val apis = databaseFiles.map {
-            File(it).also {
-                it.delete()
-                it.deleteOnExit()
-            }
-            val database = Database.Companion.connect("jdbc:sqlite:$it", driver = "org.sqlite.JDBC").also {
-                it.transactionManager.defaultIsolationLevel = Connection.TRANSACTION_SERIALIZABLE
-            }
-            ExposedKeyValueRepo<ContentId, AdapterType>(
-                database,
-                { text("contentId") },
-                { text("adapterType") },
-                "ContentRepo"
-            ).asBusinessContentRepo(
-                TextBusinessContentRepoContentAdapter(
-                    ExposedKeyValueRepo<ContentId, String>(
-                        database,
-                        { text("contentId") },
-                        { text("text") },
-                        "TextContentRepo"
-                    )
-                )
-            )
-        }
-
-        val results = apis.mapIndexed { i, api ->
-            val expectedContent = TextContent(i.toString())
-            val contents = runBlocking { api.create(TextContent(i.toString())) }
-            val idsCount = runBlocking { api.count() }
-            assertEquals(idsCount, 1)
-            assert(contents.isNotEmpty())
-            assertEquals(
-                expectedContent,
-                contents.first().content
-            )
-            contents.first()
-        }
-
-        results.forEachIndexed { i, content ->
-            apis.forEachIndexed { j, api ->
-                assert(
-                    runBlocking {
-                        api.getById(content.id) == (if (i != j) null else content)
-                    }
-                )
-                runBlocking {
-                    api.deleteById(content.id)
-                }
-            }
-        }
-
-        databaseFiles.forEach {
-            File(it).delete()
-        }
-    }
-}
--- a/core/exposed/src/jvmTest/kotlin/dev/inmo/postssystem/core/exposed/ExposedPostsRepoCommonTests.kt
+++ b/core/exposed/src/jvmTest/kotlin/dev/inmo/postssystem/core/exposed/ExposedPostsRepoCommonTests.kt
@ -1,64 +0,0 @@
-package dev.inmo.postssystem.core.exposed
-
-import dev.inmo.postssystem.core.post.SimplePost
-import kotlinx.coroutines.runBlocking
-import org.jetbrains.exposed.sql.Database
-import org.jetbrains.exposed.sql.transactions.transactionManager
-import java.io.File
-import java.sql.Connection
-import kotlin.test.*
-
-class ExposedPostsRepoCommonTests {
-    private val tempFolder = System.getProperty("java.io.tmpdir")!!
-
-    private val numberOfDatabases = 8
-    private lateinit var databaseFiles: List<File>
-    private lateinit var apis: List<ExposedPostsRepo>
-
-    @BeforeTest
-    fun prepare() {
-        databaseFiles = (0 until numberOfDatabases).map {
-            File("$tempFolder/ExposedPostsAPICommonTestsDB$it.db")
-        }
-        apis = databaseFiles.map {
-            val database = Database.connect("jdbc:sqlite:${it.absolutePath}").also {
-                it.transactionManager.defaultIsolationLevel = Connection.TRANSACTION_SERIALIZABLE
-            }
-            ExposedPostsRepo(
-                database
-            )
-        }
-    }
-
-    @Test
-    fun `Test that it is possible to use several different databases at one time`() {
-        val posts = apis.mapIndexed { i, api ->
-            val content = runBlocking { api.createPost(SimplePost(listOf(i.toString()))) }
-            assert(content != null)
-            assert(runBlocking { api.getPostsIds().size == 1 })
-            content!!
-        }
-
-        posts.forEachIndexed { i, post ->
-            apis.forEachIndexed { j, api ->
-                assert(
-                    runBlocking {
-                        api.getPostById(post.id) == (if (i != j) null else post)
-                    }
-                )
-                assert(
-                    runBlocking {
-                        api.deletePost(post.id) == (i == j)
-                    }
-                )
-            }
-        }
-    }
-
-    @AfterTest
-    fun `Close and delete databases`() {
-        databaseFiles.forEach {
-            it.delete()
-        }
-    }
-}
--- a/core/ktor/client/gradle.properties
+++ b/core/ktor/client/gradle.properties
@ -1 +0,0 @@
-
--- a/core/ktor/client/settings.gradle
+++ b/core/ktor/client/settings.gradle
@ -1 +0,0 @@
-
--- a/core/ktor/client/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/client/post/PostsRepoKtorClient.kt
+++ b/core/ktor/client/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/client/post/PostsRepoKtorClient.kt
@ -1,28 +0,0 @@
-package dev.inmo.postssystem.core.ktor.client.post
-
-import dev.inmo.postssystem.core.ktor.postsRootRoute
-import dev.inmo.postssystem.core.post.repo.*
-import io.ktor.client.HttpClient
-import io.ktor.client.features.websocket.WebSockets
-
-class PostsRepoKtorClient private constructor(
-    readPostsRepo: ReadPostsRepo,
-    writePostsRepo: WritePostsRepo
-) : PostsRepo, ReadPostsRepo by readPostsRepo, WritePostsRepo by writePostsRepo {
-    constructor(
-        baseUrl: String,
-        rootRoute: String? = postsRootRoute,
-        client: HttpClient = HttpClient {
-            install(WebSockets)
-        }
-    ) : this(
-        ReadPostsRepoKtorClient(
-            rootRoute ?.let { "${baseUrl}/$rootRoute" } ?: baseUrl,
-            client
-        ),
-        WritePostsRepoKtorClient(
-            rootRoute ?.let { "${baseUrl}/$rootRoute" } ?: baseUrl,
-            client
-        )
-    )
-}
--- a/core/ktor/client/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/client/post/ReadPostsRepoKtorClient.kt
+++ b/core/ktor/client/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/client/post/ReadPostsRepoKtorClient.kt
@ -1,56 +0,0 @@
-package dev.inmo.postssystem.core.ktor.client.post
-
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.ktor.*
-import dev.inmo.postssystem.core.post.PostId
-import dev.inmo.postssystem.core.post.RegisteredPost
-import dev.inmo.postssystem.core.post.repo.ReadPostsRepo
-import com.soywiz.klock.DateTime
-import dev.inmo.micro_utils.ktor.client.uniget
-import dev.inmo.micro_utils.ktor.common.asFromToUrlPart
-import dev.inmo.micro_utils.ktor.common.buildStandardUrl
-import dev.inmo.micro_utils.pagination.*
-import io.ktor.client.HttpClient
-import kotlinx.serialization.builtins.nullable
-
-class ReadPostsRepoKtorClient(
-    private val baseUrl: String,
-    private val client: HttpClient = HttpClient()
-) : ReadPostsRepo {
-    override suspend fun getPostsIds(): Set<PostId> = client.uniget(
-        buildStandardUrl(baseUrl, getPostsIdsRoute),
-        postIdsSerializer
-    )
-
-    override suspend fun getPostById(id: PostId): RegisteredPost? = client.uniget(
-        buildStandardUrl(baseUrl, "$getPostByIdRoute/$id"),
-        RegisteredPost.serializer().nullable
-    )
-
-    override suspend fun getPostsByContent(id: ContentId): List<RegisteredPost> = client.uniget(
-        buildStandardUrl(baseUrl, "$getPostsByContentRoute/$id"),
-        registeredPostsListSerializer
-    )
-
-    override suspend fun getPostsByCreatingDates(
-        from: DateTime,
-        to: DateTime,
-        pagination: Pagination
-    ): PaginationResult<RegisteredPost> = client.uniget(
-        buildStandardUrl(
-            baseUrl,
-            getPostsByCreatingDatesRoute,
-            (from to to).asFromToUrlPart + pagination.asUrlQueryParts
-        ),
-        registeredPostsPaginationResultSerializer
-    )
-
-    override suspend fun getPostsByPagination(pagination: Pagination): PaginationResult<RegisteredPost> = client.uniget(
-        buildStandardUrl(
-            baseUrl,
-            getPostsByCreatingDatesRoute,
-            pagination.asUrlQueryParts
-        ),
-        registeredPostsPaginationResultSerializer
-    )
-}
--- a/core/ktor/client/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/client/post/WritePostsRepoKtorClient.kt
+++ b/core/ktor/client/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/client/post/WritePostsRepoKtorClient.kt
@ -1,49 +0,0 @@
-package dev.inmo.postssystem.core.ktor.client.post
-
-import dev.inmo.postssystem.core.ktor.*
-import dev.inmo.postssystem.core.post.*
-import dev.inmo.postssystem.core.post.repo.WritePostsRepo
-import dev.inmo.micro_utils.ktor.client.*
-import io.ktor.client.HttpClient
-import io.ktor.client.features.websocket.WebSockets
-import kotlinx.coroutines.flow.Flow
-import kotlinx.serialization.builtins.nullable
-import kotlinx.serialization.builtins.serializer
-
-class WritePostsRepoKtorClient (
-    private val baseUrl: String,
-    private val client: HttpClient = HttpClient {
-        install(WebSockets)
-    }
-) : WritePostsRepo {
-    override val postCreatedFlow: Flow<RegisteredPost> = client.createStandardWebsocketFlow(
-        "$baseUrl/$postCreatedFlowRoute",
-        deserializer = RegisteredPost.serializer()
-    )
-    override val postDeletedFlow: Flow<RegisteredPost> = client.createStandardWebsocketFlow(
-        "$baseUrl/$postDeletedFlowRoute",
-        deserializer = RegisteredPost.serializer()
-    )
-    override val postUpdatedFlow: Flow<RegisteredPost> = client.createStandardWebsocketFlow(
-        "$baseUrl/$postUpdatedFlowRoute",
-        deserializer = RegisteredPost.serializer()
-    )
-
-    override suspend fun createPost(post: Post): RegisteredPost? = client.unipost(
-        "$baseUrl/$createPostRoute",
-        BodyPair(Post.serializer(), post),
-        RegisteredPost.serializer().nullable
-    )
-
-    override suspend fun deletePost(id: PostId): Boolean = client.unipost(
-        "$baseUrl/$deletePostRoute",
-        BodyPair(PostId.serializer(), id),
-        Boolean.serializer()
-    )
-
-    override suspend fun updatePostContent(postId: PostId, post: Post): Boolean = client.unipost(
-        "$baseUrl/$updatePostContentRoute",
-        BodyPair(UpdatePostObject.serializer(), UpdatePostObject(postId, post)),
-        Boolean.serializer()
-    )
-}
--- a/core/ktor/client/src/main/AndroidManifest.xml
+++ b/core/ktor/client/src/main/AndroidManifest.xml
@ -1 +0,0 @@
-<manifest package="dev.inmo.postssystem.core.ktor.client"/>
--- a/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/ContentRoutes.kt
+++ b/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/ContentRoutes.kt
@ -1,13 +0,0 @@
-package dev.inmo.postssystem.core.ktor
-
-const val contentRootRoute = "content"
-
-const val getContentsIdsRoute = "getContentsIds"
-const val getContentByIdRoute = "getContentById"
-const val getContentByPaginationRoute = "getContentByPagination"
-
-const val registerContentRoute = "registerContent"
-const val deleteContentRoute = "deleteContent"
-
-const val contentCreatedFlowRoute = "contentCreatedFlow"
-const val contentDeletedFlowRoute = "contentDeletedFlow"
--- a/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/PostRoutes.kt
+++ b/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/PostRoutes.kt
@ -1,17 +0,0 @@
-package dev.inmo.postssystem.core.ktor
-
-const val postsRootRoute = "post"
-const val publishedPostsSubRoute = "published"
-
-const val getPostsIdsRoute = "getPostsIds"
-const val getPostByIdRoute = "getPostById"
-const val getPostsByContentRoute = "getPostsByContent"
-const val getPostsByCreatingDatesRoute = "getPostsByCreatingDates"
-const val getPostsByPaginationRoute = "getPostsByPagination"
-
-const val postCreatedFlowRoute = "postCreatedFlow"
-const val postDeletedFlowRoute = "postDeletedFlow"
-const val postUpdatedFlowRoute = "postUpdatedFlow"
-const val createPostRoute = "createPost"
-const val deletePostRoute = "deletePost"
-const val updatePostContentRoute = "updatePostContent"
--- a/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/Serializers.kt
+++ b/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/Serializers.kt
@ -1,14 +0,0 @@
-package dev.inmo.postssystem.core.ktor
-
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.content.RegisteredContent
-import dev.inmo.postssystem.core.post.PostId
-import dev.inmo.postssystem.core.post.RegisteredPost
-import dev.inmo.micro_utils.pagination.PaginationResult
-import kotlinx.serialization.builtins.*
-
-val contentIdsSerializer = SetSerializer(ContentId.serializer())
-val postIdsSerializer = SetSerializer(PostId.serializer())
-val registeredPostsListSerializer = ListSerializer(RegisteredPost.serializer())
-val registeredPostsPaginationResultSerializer = PaginationResult.serializer(RegisteredPost.serializer())
-val registeredContentPaginationResultSerializer = PaginationResult.serializer(RegisteredContent.serializer())
--- a/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/UpdatePostObject.kt
+++ b/core/ktor/common/src/commonMain/kotlin/dev/inmo/postssystem/core/ktor/UpdatePostObject.kt
@ -1,11 +0,0 @@
-package dev.inmo.postssystem.core.ktor
-
-import dev.inmo.postssystem.core.post.Post
-import dev.inmo.postssystem.core.post.PostId
-import kotlinx.serialization.Serializable
-
-@Serializable
-data class UpdatePostObject(
-    val postId: PostId,
-    val post: Post
-)
--- a/core/ktor/common/src/main/AndroidManifest.xml
+++ b/core/ktor/common/src/main/AndroidManifest.xml
@ -1 +0,0 @@
-<manifest package="dev.inmo.postssystem.core.ktor.common"/>
--- a/core/ktor/server/build.gradle
+++ b/core/ktor/server/build.gradle
@ -1,26 +0,0 @@
-plugins {
-    id "org.jetbrains.kotlin.multiplatform"
-    id "org.jetbrains.kotlin.plugin.serialization"
-}
-
-apply from: "$mppJavaProjectPresetPath"
-
-kotlin {
-    sourceSets {
-        commonMain {
-            dependencies {
-                api "dev.inmo:micro_utils.pagination.ktor.server:$microutils_version"
-                api "dev.inmo:micro_utils.ktor.server:$microutils_version"
-
-                api project(":postssystem.core.ktor.common")
-            }
-        }
-        jvmTest {
-            dependencies {
-                implementation "org.xerial:sqlite-jdbc:$test_sqlite_version"
-                implementation "org.jetbrains.kotlin:kotlin-test"
-                implementation "org.jetbrains.kotlin:kotlin-test-junit"
-            }
-        }
-    }
-}
--- a/core/ktor/server/src/jvmMain/kotlin/dev/inmo/postssystem/core/ktor/server/post/PostsRepoRoutingConfigurator.kt
+++ b/core/ktor/server/src/jvmMain/kotlin/dev/inmo/postssystem/core/ktor/server/post/PostsRepoRoutingConfigurator.kt
@ -1,30 +0,0 @@
-package dev.inmo.postssystem.core.ktor.server.post
-
-import dev.inmo.postssystem.core.ktor.postsRootRoute
-import dev.inmo.postssystem.core.post.repo.PostsRepo
-import dev.inmo.micro_utils.ktor.server.configurators.ApplicationRoutingConfigurator
-import io.ktor.routing.Route
-import io.ktor.routing.route
-
-private inline fun configurator(proxyTo: PostsRepo): Route.() -> Unit = {
-    configureReadPostsRepoRoutes(proxyTo)
-    configureWritePostsRepoRoutes(proxyTo)
-}
-
-fun Route.configurePostsRepoRoutes(
-    proxyTo: PostsRepo,
-    rootRoute: String? = postsRootRoute
-) {
-    rootRoute ?.also {
-        route(it, configurator(proxyTo))
-    } ?: configurator(proxyTo).invoke(this)
-}
-
-class PostsRepoRoutingConfigurator(
-    private val proxyTo: PostsRepo,
-    private val rootRoute: String? = postsRootRoute
-) : ApplicationRoutingConfigurator.Element {
-    override fun Route.invoke() {
-        configurePostsRepoRoutes(proxyTo, rootRoute)
-    }
-}
--- a/core/ktor/server/src/jvmMain/kotlin/dev/inmo/postssystem/core/ktor/server/post/ReadPostsRepoRoutingConfigurator.kt
+++ b/core/ktor/server/src/jvmMain/kotlin/dev/inmo/postssystem/core/ktor/server/post/ReadPostsRepoRoutingConfigurator.kt
@ -1,70 +0,0 @@
-package dev.inmo.postssystem.core.ktor.server.post
-
-import dev.inmo.postssystem.core.MAX_DATE
-import dev.inmo.postssystem.core.MIN_DATE
-import dev.inmo.postssystem.core.content.ContentId
-import dev.inmo.postssystem.core.ktor.*
-import dev.inmo.postssystem.core.post.PostId
-import dev.inmo.postssystem.core.post.RegisteredPost
-import dev.inmo.postssystem.core.post.repo.ReadPostsRepo
-import dev.inmo.micro_utils.ktor.server.*
-import dev.inmo.micro_utils.ktor.server.configurators.ApplicationRoutingConfigurator
-import dev.inmo.micro_utils.pagination.extractPagination
-import io.ktor.application.call
-import io.ktor.routing.Route
-import io.ktor.routing.get
-import kotlinx.serialization.builtins.nullable
-
-fun Route.configureReadPostsRepoRoutes(
-    proxyTo: ReadPostsRepo
-) {
-    get(getPostsIdsRoute) {
-        call.unianswer(
-            postIdsSerializer,
-            proxyTo.getPostsIds()
-        )
-    }
-    get("$getPostByIdRoute/{id}") {
-        val id: PostId = call.getParameterOrSendError("id") ?: return@get
-        call.unianswer(
-            RegisteredPost.serializer().nullable,
-            proxyTo.getPostById(id)
-        )
-    }
-    get("$getPostsByContentRoute/{id}") {
-        val id: ContentId = call.getParameterOrSendError("id") ?: return@get
-        call.unianswer(
-            registeredPostsListSerializer,
-            proxyTo.getPostsByContent(id)
-        )
-    }
-    get(getPostsByCreatingDatesRoute) {
-        val fromToDateTime = call.request.queryParameters.extractFromToDateTime
-        val pagination = call.request.queryParameters.extractPagination
-
-        call.unianswer(
-            registeredPostsPaginationResultSerializer,
-            proxyTo.getPostsByCreatingDates(
-                fromToDateTime.first ?: MIN_DATE,
-                fromToDateTime.second ?: MAX_DATE,
-                pagination
-            )
-        )
-    }
-    get(getPostsByPaginationRoute) {
-        val pagination = call.request.queryParameters.extractPagination
-
-        call.unianswer(
-            registeredPostsPaginationResultSerializer,
-            proxyTo.getPostsByPagination(pagination)
-        )
-    }
-}
-
-class ReadPostsRepoRoutingConfigurator(
-    private val proxyTo: ReadPostsRepo
-) : ApplicationRoutingConfigurator.Element {
-    override fun Route.invoke() {
-        configureReadPostsRepoRoutes(proxyTo)
-    }
-}
--- a/core/ktor/server/src/jvmMain/kotlin/dev/inmo/postssystem/core/ktor/server/post/WritePostsRepoRoutingConfigurator.kt
+++ b/core/ktor/server/src/jvmMain/kotlin/dev/inmo/postssystem/core/ktor/server/post/WritePostsRepoRoutingConfigurator.kt
@ -1,56 +0,0 @@
-package dev.inmo.postssystem.core.ktor.server.post
-
-import dev.inmo.postssystem.core.ktor.*
-import dev.inmo.postssystem.core.post.*
-import dev.inmo.postssystem.core.post.repo.WritePostsRepo
-import dev.inmo.micro_utils.ktor.server.*
-import dev.inmo.micro_utils.ktor.server.configurators.ApplicationRoutingConfigurator
-import io.ktor.application.call
-import io.ktor.routing.Route
-import io.ktor.routing.post
-import kotlinx.serialization.builtins.nullable
-import kotlinx.serialization.builtins.serializer
-
-fun Route.configureWritePostsRepoRoutes(
-    proxyTo: WritePostsRepo
-) {
-    includeWebsocketHandling(postCreatedFlowRoute, proxyTo.postCreatedFlow, RegisteredPost.serializer())
-    includeWebsocketHandling(postDeletedFlowRoute, proxyTo.postDeletedFlow, RegisteredPost.serializer())
-    includeWebsocketHandling(postUpdatedFlowRoute, proxyTo.postUpdatedFlow, RegisteredPost.serializer())
-
-    post(createPostRoute) {
-        call.unianswer(
-            RegisteredPost.serializer().nullable,
-            proxyTo.createPost(
-                call.uniload(Post.serializer())
-            )
-        )
-    }
-
-    post(deletePostRoute) {
-        call.unianswer(
-            Boolean.serializer(),
-            proxyTo.deletePost(call.uniload(PostId.serializer()))
-        )
-    }
-
-    post(updatePostContentRoute) {
-        val updatePostObject = call.uniload(UpdatePostObject.serializer())
-
-        call.unianswer(
-            Boolean.serializer(),
-            proxyTo.updatePostContent(
-                updatePostObject.postId,
-                updatePostObject.post
-            )
-        )
-    }
-}
-
-class WritePostsRepoRoutingConfigurator(
-    private val proxyTo: WritePostsRepo
-) : ApplicationRoutingConfigurator.Element {
-    override fun Route.invoke() {
-        configureWritePostsRepoRoutes(proxyTo)
-    }
-}
--- a/38
+++ b/38
@ -1,38 +0,0 @@
-android {
-    compileSdkVersion "$android_compileSdkVersion".toInteger()
-    buildToolsVersion "$android_buildToolsVersion"
-
-    defaultConfig {
-        minSdkVersion "$android_minSdkVersion".toInteger()
-        targetSdkVersion "$android_compileSdkVersion".toInteger()
-        versionCode "${android_code_version}".toInteger()
-        versionName "$version"
-    }
-    buildTypes {
-        release {
-            minifyEnabled false
-        }
-        debug {
-            debuggable true
-        }
-    }
-
-    packagingOptions {
-        exclude 'META-INF/kotlinx-serialization-runtime.kotlin_module'
-        exclude 'META-INF/kotlinx-serialization-cbor.kotlin_module'
-        exclude 'META-INF/kotlinx-serialization-properties.kotlin_module'
-    }
-
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
-
-    kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_1_8.toString()
-    }
-
-    sourceSets {
-        main.java.srcDirs += 'src/main/kotlin'
-    }
-}
--- a/defaultAndroidSettings.gradle
+++ b/defaultAndroidSettings.gradle
@ -0,0 +1,68 @@
+apply plugin: 'com.getkeepsafe.dexcount'
+
+android {
+    ext {
+        jvmKotlinFolderFile = {
+            String sep = File.separator
+            return new File("${project.projectDir}${sep}src${sep}jvmMain${sep}kotlin")
+        }
+
+        enableIncludingJvmCodeInAndroidPart = {
+            File jvmKotlinFolder = jvmKotlinFolderFile()
+            if (jvmKotlinFolder.exists()) {
+                android.sourceSets.main.java.srcDirs += jvmKotlinFolder.path
+            }
+        }
+
+        disableIncludingJvmCodeInAndroidPart = {
+            File jvmKotlinFolder = jvmKotlinFolderFile()
+            String[] oldDirs = android.sourceSets.main.java.srcDirs
+            android.sourceSets.main.java.srcDirs = []
+            for (oldDir in oldDirs) {
+                if (oldDir != jvmKotlinFolder.path) {
+                    android.sourceSets.main.java.srcDirs += oldDir
+                }
+            }
+        }
+    }
+
+    compileSdkVersion "$android_compileSdkVersion".toInteger()
+    buildToolsVersion "$android_buildToolsVersion"
+
+    defaultConfig {
+        minSdkVersion "$android_minSdkVersion".toInteger()
+        targetSdkVersion "$android_compileSdkVersion".toInteger()
+        versionCode "${android_code_version}".toInteger()
+        versionName "$version"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+        debug {
+            debuggable true
+        }
+    }
+
+    packagingOptions {
+        exclude 'META-INF/kotlinx-serialization-runtime.kotlin_module'
+        exclude 'META-INF/kotlinx-serialization-cbor.kotlin_module'
+        exclude 'META-INF/kotlinx-serialization-properties.kotlin_module'
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+
+    sourceSets {
+        String sep = File.separator
+        main.java.srcDirs += "src${sep}main${sep}kotlin"
+    }
+
+    enableIncludingJvmCodeInAndroidPart()
+}
--- a/extensions.gradle
+++ b/extensions.gradle
@ -1,11 +1,25 @@
 allprojects {
    ext {
-        mppProjectWithSerializationPresetPath = "${rootProject.projectDir.absolutePath}/mppProjectWithSerialization"
-        mppJavaProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppJavaProject"
-        mppAndroidProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppAndroidProject"
+        projectByName = { String name ->
+            for (subproject in rootProject.subprojects) {
+                if (subproject.name == name) {
+                    return subproject
+                }
+            }
+            return null
+        }

-        defaultAndroidSettingsPresetPath = "${rootProject.projectDir.absolutePath}/defaultAndroidSettings"
+        internalProject = { String name ->
+            projectByName(name)
+        }

-        publishGradlePath = "${rootProject.projectDir.absolutePath}/publish.gradle"
+        mppProjectWithSerializationPresetPath = "${rootProject.projectDir.absolutePath}/mppProjectWithSerialization.gradle"
+        mppJavaProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppJavaProject.gradle"
+        mppJsProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppJsProject.gradle"
+        mppAndroidProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppAndroidProject.gradle"
+
+        defaultAndroidSettingsPresetPath = "${rootProject.projectDir.absolutePath}/defaultAndroidSettings.gradle"
+
+         publishGradlePath = "${rootProject.projectDir.absolutePath}/publish.gradle"
    }
 }
--- a/publishing/ktor/common/build.gradle
+++ b/publishing/ktor/common/build.gradle
@ -10,9 +10,8 @@ kotlin {
    sourceSets {
        commonMain {
            dependencies {
-                api "dev.inmo:micro_utils.ktor.common:$microutils_version"
-
-                api project(":postssystem.publishing.api")
+                api project(":postssystem.features.common.client")
+                api project(":postssystem.features.auth.common")
            }
        }
    }
--- a/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ClientAuthFeature.kt
+++ b/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ClientAuthFeature.kt
@ -0,0 +1,55 @@
+package dev.inmo.postssystem.features.auth.client
+
+import dev.inmo.postssystem.features.auth.common.*
+import dev.inmo.postssystem.features.users.common.User
+import dev.inmo.micro_utils.ktor.client.UnifiedRequester
+import dev.inmo.micro_utils.ktor.common.buildStandardUrl
+import io.ktor.client.HttpClient
+import io.ktor.client.request.HttpRequestBuilder
+import kotlinx.serialization.builtins.nullable
+
+class ClientAuthFeature(
+    private val requester: UnifiedRequester,
+    baseUrl: String
+) : AuthFeature {
+    private val rootUrl = buildStandardUrl(baseUrl.dropLastWhile { it == '/' }, authRootPathPart)
+    private val fullAuthPath = buildStandardUrl(
+        rootUrl,
+        authAuthPathPart
+    )
+    private val fullRefreshPath = buildStandardUrl(
+        rootUrl,
+        authRefreshPathPart
+    )
+    private val fullGetMePath = buildStandardUrl(
+        rootUrl,
+        authGetMePathPart
+    )
+
+    constructor(client: HttpClient, rootUrl: String): this(
+        UnifiedRequester(client),
+        rootUrl
+    )
+
+    override suspend fun auth(creds: AuthCreds): AuthTokenInfo? = requester.unipost(
+        fullAuthPath,
+        AuthCreds.serializer() to creds,
+        AuthTokenInfo.serializer().nullable
+    )
+
+    override suspend fun refresh(refresh: RefreshToken): AuthTokenInfo? = requester.unipost(
+        fullRefreshPath,
+        RefreshToken.serializer() to refresh,
+        AuthTokenInfo.serializer().nullable
+    )
+
+    override suspend fun getMe(authToken: AuthToken): User? = requester.unipost(
+        fullGetMePath,
+        AuthToken.serializer() to authToken,
+        User.serializer().nullable
+    )
+
+    fun isAuthRequest(builder: HttpRequestBuilder): Boolean = builder.url.buildString().let {
+        it == fullAuthPath || it == fullRefreshPath
+    }
+}
--- a/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ClientCookiesConfigurator.kt
+++ b/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ClientCookiesConfigurator.kt
@ -0,0 +1,112 @@
+package dev.inmo.postssystem.features.auth.client
+
+import dev.inmo.postssystem.features.auth.common.*
+import dev.inmo.postssystem.features.users.common.User
+import dev.inmo.micro_utils.common.*
+import dev.inmo.micro_utils.coroutines.launchSafelyWithoutExceptions
+import io.ktor.client.HttpClientConfig
+import io.ktor.client.features.cookies.*
+import io.ktor.client.features.expectSuccess
+import io.ktor.client.request.*
+import io.ktor.client.statement.HttpReceivePipeline
+import io.ktor.client.statement.HttpResponse
+import io.ktor.http.*
+import kotlinx.coroutines.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+object AuthUnavailableException : Exception()
+
+fun HttpClientConfig<*>.installClientAuthenticator(
+    baseUrl: String,
+    scope: CoroutineScope,
+    initialAuthKey: Either<AuthKey, AuthTokenInfo>,
+    onAuthKeyUpdated: suspend (AuthTokenInfo) -> Unit,
+    onUserRetrieved: suspend (User?) -> Unit,
+    onAuthKeyInvalidated: suspend () -> Unit
+) {
+//    install(Logging) {
+//        logger = Logger.DEFAULT
+//        level = LogLevel.HEADERS
+//    }
+    install(HttpCookies) {
+        // Will keep an in-memory map with all the cookies from previous requests.
+        storage = AcceptAllCookiesStorage()
+    }
+
+    val authMutex = Mutex()
+    var currentRefreshToken: RefreshToken? = null
+    initialAuthKey.onFirst {
+        currentRefreshToken = it as? RefreshToken
+    }.onSecond {
+        currentRefreshToken = it.refresh
+    }
+    val creds = initialAuthKey.t1 as? AuthCreds
+    var userRefreshJob: Job? = null
+
+    install("Auth Token Refresher") {
+        val clientAuthFeature = ClientAuthFeature(this, baseUrl)
+        fun refreshUser(newTokenInfo: AuthTokenInfo) {
+            userRefreshJob ?.cancel()
+            userRefreshJob = scope.launchSafelyWithoutExceptions {
+                onUserRetrieved(clientAuthFeature.getMe(newTokenInfo.token))
+            }
+        }
+        initialAuthKey.onSecond { refreshUser(it) }
+
+        suspend fun refreshToken() {
+            val capturedRefresh = currentRefreshToken
+
+            runCatching {
+                when {
+                    capturedRefresh == null && creds == null -> throw AuthUnavailableException
+                    capturedRefresh != null -> {
+                        currentRefreshToken = null
+                        val newTokenInfo = clientAuthFeature.refresh(capturedRefresh)
+                        currentRefreshToken = newTokenInfo ?.refresh
+                        if (newTokenInfo == null) {
+                            refreshToken()
+                        } else {
+                            onAuthKeyUpdated(newTokenInfo)
+                            refreshUser(newTokenInfo)
+                        }
+                    }
+                    creds != null -> {
+                        val newAuthTokenInfo = clientAuthFeature.auth(creds)
+
+                        if (newAuthTokenInfo != null) {
+                            onAuthKeyUpdated(newAuthTokenInfo)
+                            refreshUser(newAuthTokenInfo)
+                            currentRefreshToken = newAuthTokenInfo.refresh
+                        }
+                    }
+                }
+            }.onFailure {
+                onAuthKeyInvalidated()
+            }
+        }
+
+        sendPipeline.intercept(HttpSendPipeline.State) {
+            if (!context.url.buildString().startsWith(baseUrl) || clientAuthFeature.isAuthRequest(context)) {
+                return@intercept
+            }
+            context.expectSuccess = false
+            if (authMutex.isLocked) {
+                authMutex.withLock { /* do nothing, just wait while mutex will be freed */ }
+            }
+        }
+
+        receivePipeline.intercept(HttpReceivePipeline.Before) {
+            if (
+                context.request.url.toString().startsWith(baseUrl)
+                && context.response.status == HttpStatusCode.Unauthorized
+            ) {
+                authMutex.withLock { refreshToken() }
+                val newResponse = context.client ?.request<HttpResponse>{
+                    takeFrom(context.request)
+                } ?: return@intercept
+                proceedWith(newResponse)
+            }
+        }
+    }
+}
--- a/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ui/AuthUIModel.kt
+++ b/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ui/AuthUIModel.kt
@ -0,0 +1,8 @@
+package dev.inmo.postssystem.features.auth.client.ui
+
+import dev.inmo.postssystem.features.auth.common.AuthCreds
+import dev.inmo.postssystem.features.common.common.UIModel
+
+interface AuthUIModel : UIModel<AuthUIState> {
+    suspend fun initAuth(serverUrl: String, creds: AuthCreds)
+}
--- a/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ui/AuthUIState.kt
+++ b/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ui/AuthUIState.kt
@ -0,0 +1,20 @@
+package dev.inmo.postssystem.features.auth.client.ui
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+sealed class AuthUIError
+@Serializable
+object ServerUnavailableAuthUIError : AuthUIError()
+@Serializable
+object AuthIncorrectAuthUIError : AuthUIError()
+
+@Serializable
+sealed class AuthUIState
+@Serializable
+data class InitAuthUIState(val showError: AuthUIError? = null) : AuthUIState()
+val DefaultInitAuthUIState = InitAuthUIState()
+@Serializable
+object LoadingAuthUIState : AuthUIState()
+@Serializable
+object AuthorizedAuthUIState : AuthUIState()
--- a/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ui/AuthUIViewModel.kt
+++ b/features/auth/client/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/client/ui/AuthUIViewModel.kt
@ -0,0 +1,34 @@
+package dev.inmo.postssystem.features.auth.client.ui
+
+import dev.inmo.postssystem.features.auth.common.AuthCreds
+import dev.inmo.postssystem.features.common.common.UIViewModel
+import dev.inmo.postssystem.features.users.common.Username
+import kotlinx.coroutines.flow.StateFlow
+
+class AuthUIViewModel(
+    private val model: AuthUIModel
+) : UIViewModel<AuthUIState> {
+    override val currentState: StateFlow<AuthUIState>
+        get() = model.currentState
+
+    private fun checkIncomingData(
+        serverUrl: String,
+        username: String,
+        password: String
+    ): Boolean {
+        return serverUrl.isNotBlank() && username.isNotBlank() && password.isNotBlank()
+    }
+
+    suspend fun initAuth(
+        serverUrl: String,
+        username: String,
+        password: String
+    ) {
+        if (checkIncomingData(serverUrl, username, password)) {
+            model.initAuth(
+                serverUrl.takeIf { it.startsWith("http") } ?: "http://$serverUrl",
+                AuthCreds(Username(username), password)
+            )
+        }
+    }
+}
--- a/features/auth/client/src/main/AndroidManifest.xml
+++ b/features/auth/client/src/main/AndroidManifest.xml
@ -0,0 +1 @@
+<manifest package="dev.inmo.postssystem.features.auth.client"/>
--- a/business_cases/post_creating/common/build.gradle
+++ b/business_cases/post_creating/common/build.gradle
@ -10,10 +10,8 @@ kotlin {
    sourceSets {
        commonMain {
            dependencies {
-                implementation kotlin('stdlib')
-
-                api project(":postssystem.core.ktor.common")
-                api project(":postssystem.publishing.ktor.common")
+                api project(":postssystem.features.common.common")
+                api project(":postssystem.features.users.common")
            }
        }
    }
--- a/features/auth/common/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/common/AuthFeature.kt
+++ b/features/auth/common/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/common/AuthFeature.kt
@ -0,0 +1,9 @@
+package dev.inmo.postssystem.features.auth.common
+
+import dev.inmo.postssystem.features.users.common.User
+
+interface AuthFeature {
+    suspend fun auth(creds: AuthCreds): AuthTokenInfo?
+    suspend fun refresh(refresh: RefreshToken): AuthTokenInfo?
+    suspend fun getMe(authToken: AuthToken): User?
+}
--- a/features/auth/common/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/common/AuthModels.kt
+++ b/features/auth/common/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/common/AuthModels.kt
@ -0,0 +1,36 @@
+package dev.inmo.postssystem.features.auth.common
+
+import com.benasher44.uuid.uuid4
+import dev.inmo.postssystem.features.users.common.Username
+import kotlinx.serialization.*
+import kotlin.jvm.JvmInline
+
+sealed interface AuthKey
+
+@Serializable
+@SerialName("authcreds")
+data class AuthCreds(
+    val username: Username,
+    val password: String
+): AuthKey
+
+
+@Serializable
+@SerialName("token")
+@JvmInline
+value class AuthToken(val string: String = uuid4().toString()): AuthKey {
+    override fun toString(): String = string
+}
+
+@Serializable
+@SerialName("refresh")
+@JvmInline
+value class RefreshToken(val string: String = uuid4().toString()): AuthKey {
+    override fun toString(): String = string
+}
+
+@Serializable
+data class AuthTokenInfo(
+    val token: AuthToken,
+    val refresh: RefreshToken
+)
--- a/features/auth/common/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/common/Constants.kt
+++ b/features/auth/common/src/commonMain/kotlin/dev/inmo/postssystem/features/auth/common/Constants.kt
@ -0,0 +1,8 @@
+package dev.inmo.postssystem.features.auth.common
+
+const val tokenSessionKey = "token"
+
+const val authRootPathPart = "auth"
+const val authAuthPathPart = "auth"
+const val authRefreshPathPart = "refresh"
+const val authGetMePathPart = "getMe"
--- a/features/auth/common/src/main/AndroidManifest.xml
+++ b/features/auth/common/src/main/AndroidManifest.xml
@ -0,0 +1 @@
+<manifest package="dev.inmo.postssystem.features.auth.common"/>
--- a/features/auth/server/build.gradle
+++ b/features/auth/server/build.gradle
@ -0,0 +1,17 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+}
+
+apply from: "$mppJavaProjectPresetPath"
+
+kotlin {
+    sourceSets {
+        commonMain {
+            dependencies {
+                api project(":postssystem.features.auth.common")
+                api project(":postssystem.features.common.server")
+            }
+        }
+    }
+}
--- a/Show More
+++ b/Show More
				`@ -1 +0,0 @@`
				`<manifest package="dev.inmo.postssystem.business_cases.post_creating.client"/>`
				`@ -0,0 +1 @@`
				`<manifest package="dev.inmo.postssystem.client"/>`